How to log a meal

Logging a meal in Diablesse is fast and intuitive. Here's how:

1. Open the Diary

On the Diary tab (book icon), tap the + button in the bottom-right corner of the screen.

2. Enter your glucose (optional)

If you measured your blood glucose before the meal, enter the value in the glucose field.

3. Search for foods

In the search field, type the food name.

Tip: You can type partial words — "whole bread" finds "Whole Wheat Sandwich Bread".

4. Select the portion

Choose the measure and the amount you consumed. You can adjust portions precisely.

5. Add more foods

Repeat the process for each food in the meal. All items are listed with the total carbs and calories.

6. Enter the bolus (optional)

If you took insulin, enter the bolus dose manually. Diablesse records it together with the meal (it does not calculate the dose).

7. Save the meal

Tap Save to log it. The meal will appear in your Diary with the date and time, carbs, and bolus.

How to use the Favorite Foods list

The favorite foods list was created to speed up filling in your diary. By favoriting the foods you eat most often, they'll appear highlighted on the meals screen, so you don't have to search for them again every time you log.

How to add a food to favorites

1. Open the Favorites screen
   In the app's bottom bar, tap the Favorites icon.
2. Add a new favorite
   Tap the + (plus) sign in the corner of the screen.
3. Search for the food you want
   Type the food name in the search field. The app queries the food database (already adapted to the language selected in settings).
4. Select the food
   Tap the correct result. The food will be saved automatically to your favorites list.

Where favorite foods appear

When you create a new diary entry (meal), favorite foods are shown first at the top of the food selection screen. That way you can add them quickly, without searching again.

Managing your favorites list

Practical example

If you usually eat rice, beans, chicken, and salad for lunch:

1. Add each of these foods to favorites once
2. When you log a new meal in the diary, they'll all appear at the top of the list
3. Just select the ones you ate – no need to search

What is a single-carb entry?

A single-carb entry is how you log carbs by hand, typing in the grams directly, without searching the food database. It's handy when you already know (or can estimate) how many grams of carbs are in what you're about to eat.

Entering the grams of a single-carb entry is free. The features below — giving it a name, entering calories, and saving it as a food — are part of Diablesse Pro.

Give the single-carb entry a description (name)

With Pro, you can give the single-carb entry a description — for example, "Grandma's cake".

This helps even if you don't save the item: the description becomes its title in the meal list, instead of the generic "Single-carb entry". So when you review your diary later, you instantly recognize what that carb was.

• With a description: the item shows the name you gave it (e.g., "Grandma's cake").
• Without a description: the item shows as "Single-carb entry", with the subtitle "added manually".

You can also enter the calories (optional). If you leave it blank, the app estimates the calories from the carbs.

Save it as a food to reuse

Ate something that isn't in the database and will eat it again? Save it as your food and skip retyping it next time.

1. In the meal entry, choose Single-carb entry and enter the amount of carbs (in grams).
2. Give the item a description (name) — that's what enables saving.
3. Turn on the "Save as food" option.
4. Tap Add.

Done: that single-carb entry becomes your food. It now shows up in Favorite foods and in search — next time, just look it up by name and add it.

The saved food is personal: it stays in your account and syncs across your devices. It does not go into the app's public food database.

Free vs Pro

Free

• Enter the grams of a single-carb entry

Pro

• Give the single-carb entry a description (name)
• Enter the calories (or let the app estimate)
• Save the single-carb entry as a favorite food

Frequently asked questions

Do I need to save it to use the description? No. The description works on its own — it becomes the item's title in the meal list. Saving is one extra step, so you can reuse the food later.

Does my saved food go into the app's public database? No. It's personal: it stays in your account and syncs across your devices. No one else sees your saved foods.

Do I have to enter the calories? It's not required. If you leave it blank, the app estimates the calories from the carbs.

What happens if I cancel Pro? The foods you saved are not deleted — they become unavailable while the subscription is inactive and come back if you resubscribe.

How to make individual diary entries

Not every entry has to be complete. In Diablesse, you're free to log just the information you want at that moment, with no obligation to fill in every available field.

What are individual entries?

They are diary entries that contain just one type of information, such as:

• Only a glucose reading
• Just a meal (no glucose or insulin)
• Only a reminder
• Just a standalone bolus (insulin dose)

✅ The app doesn't require every field to be filled in. You decide what makes sense to log at that moment.

Usage examples

How does it look in the diary?

Each piece of information logged individually will appear as a separate entry in your diary timeline, with its own time and event type.

Visual example (diary):

🩸 08:15 – Glucose: 110 mg/dL
🍽️ 08:20 – Meal: Breakfast (30g carbs)
💉 08:25 – Bolus: 3 units

Benefits of individual entries

• Flexibility – Log at your own pace, no rush
• Convenience – When you're busy, note only the essentials
• Accuracy – Avoids forgetting information when trying to fill in everything at once
• Freedom – The diary adapts to your routine, not the other way around

Important tip

💡 Even with individual entries, the app considers all information when generating reports, calculating estimates (such as HbA1c), and showing trends. What matters is logging consistently.

How to customize entry fields in Diablesse

To make filling in your diary faster and more focused, you can hide fields that aren't relevant to your day-to-day. That way, when adding a new entry, you only see the information that really matters to you.

Accessing customization

Go to Settings in the main menu and select Entry fields.

How it works

On the Entry fields screen, you'll see a list of all the fields available for diary entries (such as glucose, carbs, insulin, medications, notes, etc.).

For each field, you can:

• Keep it active – the field will appear on the entry screen
• Uncheck/hide it – the field will be removed from the entry screen, simplifying input

Practical example

Saving your changes

After checking or unchecking the fields you want, tap Save. The changes will be applied immediately on the new-entry screen.

💡 Tip: You can re-enable any field anytime by returning to this same screen. Customization doesn't delete old data – it only redefines which fields appear for new entries.

How to use Favorite Meals

Favorite meals let you save complete combinations of foods you often eat together. That way, when logging a meal in the diary, you can add all the items at once, speeding up input and ensuring consistency in your entries.

Difference between Favorite Foods and Favorite Meals

How to create a Favorite Meal

1. Open the Favorites screen
   In the app's bottom bar, tap the Favorites icon.
2. Select the Meals tab
   At the top of the screen, switch to the Meals tab (next to "Foods").
3. Add a new favorite meal
   Tap the + (plus) sign to start creating.
4. Name your favorite meal
   Examples: "Full breakfast", "Quick lunch", "Afternoon snack", "Standard dinner".
5. Add the foods that make up the meal
   • Search and select each food you want from the database
   • Enter the amounts (portions, grams, units)
   • Repeat until you've included all the meal's items
6. Save the favorite meal
   Tap Save to finish.

How to use a Favorite Meal when logging a meal

1. In the diary, tap Add entry and select the Meal type.
2. On the food selection screen, look for the Favorite Meals section.
3. Tap the favorite meal you want.
4. All the foods in that combination will be added automatically.

✅ The meal's total carbs will be calculated based on the sum of the included foods.

Editing or removing items at logging time

Even when using a favorite meal, you keep full control over what you're logging:

💡 Changes made while logging do not alter the original favorite meal. They apply only to that specific entry.

Managing your Favorite Meals

Practical example

You create a favorite meal called "Breakfast" with:

• Bread rolls (2 units)
• Butter (10g)
• Coffee with milk (200ml)

The next day, when logging your breakfast:

1. Select the "Breakfast" favorite meal
2. The three foods appear at once
3. If today you only ate 1 roll, just edit the amount
4. Done – entry made in seconds!

💡 Tip: Create favorite meals for your most frequent combinations – like your weekday lunch, your standard breakfast, or your typical dinner. This cuts daily logging time and prevents forgetting items.

How to delete your account and data

Diablesse lets you delete your account and all cloud-synced data at any time. This page explains how to do it on the Android version, where sync uses a sign-in account (Google/Firebase).

Delete your account and all data (Android)

1. Open Diablesse and go to Settings → Cloud sync.
2. Tap "Delete account and data" and confirm.

This removes the sign-in account (Google/Firebase) and all cloud-synced data — diary entries, favorites, and settings — across all your devices.

Delete only the data, without deleting the account

If you want to erase your entries but keep the account:

1. Open Backup → Advanced options.
2. Tap "Delete diary data" and confirm.

If you can't access the app

For example, if you have already uninstalled it: send an email to support@diablesse.app, from the address of the Google account used in the app, with the subject "Delete account". We process the request within 30 days.

What is deleted and what is kept

• Deleted: the authentication account and all cloud data (entries, favorites, and synced settings).
• Kept: nothing beyond minimal technical logs for a short period, if any. Menstrual cycle data was never sent to the cloud, so there is nothing to delete there.
• Local data: stays only on your device and is removed when you uninstall the app.

What about iPhone (iOS)?

On iOS, sync uses your private iCloud account, not an account of ours. Your data stays under your control in iCloud: you can manage it in your device's iCloud settings, and local data is removed when you uninstall the app.

Backup and data restore

By default, Diablesse keeps your data in your private cloud account (iCloud on iOS, Google Drive on Android), synced automatically across your devices. In addition, you can create a manual backup — a file that works as an extra copy or to move your data to another device.

Create a backup

1. Go to Settings → Backup & Restore
2. Tap Export Backup
3. The app generates a .json file with all your meals, favorites, and settings
4. Choose where to save it: iCloud Drive, Google Drive, email, etc.

Restore a backup

1. Go to Settings → Backup & Restore
2. Tap Import Backup
3. Select the .json file saved previously
4. Confirm the operation — note: current data will be replaced

What is included in the backup

• All logged meals (with glucose, items, and bolus)
• Favorite meals
• Profile settings
• Glucose range settings

Backup file security

The backup file contains your health data in plain text (JSON). We recommend saving it in a secure location, such as iCloud Drive (with Advanced Data Protection enabled) or your Google Drive account.

How to transfer your data between iOS and Android devices

If you're switching from one operating system to another (iOS to Android or Android to iOS), it's important to know that the information you've logged in the Diablesse app is not transferred automatically between devices. To keep all of your data, you'll need to perform a manual backup and restore.

Don't worry: the process is simple and quick. Just follow the step-by-step guide below.

Step 1: Export the data from your old device

1. Open the Diablesse app on your old device.
2. Go to the Settings menu.
3. Tap the Backup & Restore option.
4. Select the Export Data button.
5. The app will generate a file in JSON format containing your entire history and settings. This file works as a complete backup.
6. Choose where to save the file — you can store it on Google Drive, iCloud, the device's internal files, or any other available storage service.

✅ Tip: Save the file somewhere easy to access, such as a cloud service, to make recovery on the new device easier.

Step 2: Import the data on your new device

1. On the new device, install the Diablesse app and sign in with the same account.
2. Go again to Settings > Backup & Restore.
3. This time, tap the Import Data button.
4. Locate the JSON file you saved in the previous step (remember it must be available on the new device — if you saved it to the cloud, download it first).
5. Select the file and confirm the import.

That's it! All your data will be restored automatically, and the Diablesse app will look exactly as it did on your old device.

Important notes

• The JSON file contains all of your personal information and usage records. Keep it in a safe place and do not share it with third parties.
• Make sure both devices have the latest version of the Diablesse app installed to ensure compatibility.
• If you run into any trouble during the process, our support team is here to help.

With this procedure, your transition between systems will be smooth and you won't lose any important data. 💜

Export to AI

Export to AI is a Pro feature that creates a text summary of your data for a period (7, 15, 30, or 90 days), ready to paste into an AI assistant (such as ChatGPT or Gemini) to ask for general observations and suggestions.

What the summary includes

When there's data for the period, the summary brings:

• Glucose: number of readings, average, variability (CV%), and estimated HbA1c
• Time in ranges: % low, in range, high, and severe hypoglycemia (< 54)
• Glucose by time of day: overnight, morning, afternoon, and evening
• Activity and sleep: workouts, time, average sleep per night, and the glucose × workout and glucose × sleep relationships
• An instruction at the top (for the AI to analyze) and a notice that it's support, not a diagnosis

How to use it

1. Open Settings → Export to AI.
2. Choose the period (7, 15, 30, or 90 days).
3. Review the summary preview.
4. Tap Copy or Share.
5. Open your AI assistant, paste the text, and send. The analysis instruction is already included.

Privacy

• The summary is generated on your device. Diablesse does not send anything to AI servers.
• You decide what to do with the text — when you paste it into an assistant, that service's privacy rules apply.
• Avoid including data you don't want to share. The summary contains aggregated numbers, not personal data like your name or documents.

Important

⚠️ The summary and any AI response are support, not a diagnosis or prescription. They do not replace the evaluation of your doctor or healthcare team. If in doubt or with symptoms, seek care.

Frequently asked questions

Is it free?
No — it's a Pro feature. Backup / Export data (JSON) remains available to everyone.

What language is the summary in?
In the language set in the app.

Do I need internet?
Not to generate the summary. Only to use it in an online AI assistant.

Does it work on Android?
Yes, also as a Pro feature.

💡 Backup vs. Export to AI: Backup / Export (JSON) is the raw data, for storage or moving to another device (free). Export to AI is a curated, readable summary, built for analysis (Pro).

How to export a PDF report

Sharing your history with your doctor is essential for more accurate follow-up. Diablesse lets you generate a complete PDF report with your diary data, making clinical analysis and progress tracking easier.

Accessing the export

1. Open the app's main menu
2. Go to Settings (or look for Reports, depending on the version)
3. Select Export PDF or Generate report

Choosing the period

You can filter records by period:

📅 Note: The maximum export period is 6 months (180 days). For longer periods, generate separate reports.

Generating and saving the PDF

1. After selecting the period, tap Generate PDF or Export
2. Wait for the report to be generated (time may vary based on number of entries)
3. The app will show options to save or share the file
4. Choose Save to Files to store the PDF locally

Sharing with your doctor

With the PDF saved, you can:

• Send by email
• Share via WhatsApp or other messaging apps
• Transfer via Bluetooth or cable to a computer
• Show directly on screen during your appointment

💡 Tip: Generate the report one or two days before your appointment so the data is as up to date as possible.

Clear all records (reset the diary)

Want to start your diary from scratch? Diablesse has an option to delete all your records at once. It's a powerful, permanent action, so it's protected and requires your confirmation.

⚠️ This action is irreversible. Before you continue, we recommend exporting a backup (see below).

What is deleted

• All diary records: glucose, meals, bolus, workouts, and sleep
• Your favorites and your favorite foods list

What is not deleted

• Settings and profile
• Goals (such as the glucose range)
• Reminders and registered medications

Note: the deletion is synced

The cleanup is synced via the cloud: records disappear on all devices connected to the same account — not just the one you're using.

How to use it

1. Open Settings → Backup & Restore.
2. Scroll to the bottom and tap Advanced options (collapsed by default).
3. Tap Clear all records (in the Danger zone).
4. Read the warning and confirm with Delete everything.
5. Confirm your identity with biometrics or your device passcode. If you cancel at this step, nothing is deleted.

💡 Make a backup first. On the same screen there's an Export data option that generates a .json file with your entire history. That way, if you change your mind, you can import it back.

Prevent health data from coming back

If the Apple Health (on iOS) or Health Connect (on Android) integration is active, your health data (glucose, workouts, and sleep) may be re-imported on the next sync. To prevent that, turn off integrations in Settings → Integrations before clearing.

ℹ️ For the confirmation step, you need biometrics or a passcode set up on your device.

Frequently asked questions

Can I undo it?
No. The action is irreversible. The only way to recover is to import a backup you exported beforehand.

Does it also disappear on my other devices?
Yes. Since the deletion is synced via the cloud, records disappear on all devices connected to the same account.

Why did my health data come back?
Because the Apple Health (iOS) or Health Connect (Android) integration was active and re-imported glucose, workouts, and sleep during sync. Turn off integrations before clearing to avoid this.

Are my settings and medications also deleted?
No. Profile, goals, reminders, and medications are not deleted — only diary records and favorites.

Do I need a passcode to do this?
Yes. Confirmation requires biometrics or your device passcode. If you cancel, nothing is deleted.

Diablesse reminders come with quick actions: you respond right in the notification, without opening the app. It works on iPhone (iOS) and Android, and on your watch too (Apple Watch and Wear OS).

What you can do

Depending on the reminder, the notification offers an action:

• Glucose reminder (and the meal reminder too): a field to log glucose — just type the value.
• Medication reminder: a Mark as taken button.
• Basal insulin reminder: a Mark as applied button.

How to use it

• On iPhone: hold (long-press) the notification to open the actions, choose the action and, for glucose, type the value and send.
• On Android and Wear OS: tap the notification and choose the action; for glucose, type the value.

Done — the entry lands in your Diary right away.

What gets recorded

• Glucose: the value you typed.
• Medication: the medication marked as taken.
• Basal insulin: the basal marked as applied.

Every entry made from a notification is saved as a manual entry, with the time of the moment you confirmed it, and appears in the app and the widgets right after.

Frequently asked questions

Which glucose value is accepted? A number greater than 0 and less than 1000. You can use a comma or a dot — the app understands both.

Do I need the app to be open? No. The action happens right in the notification, and the entry appears in the Diary as soon as you confirm.

Does it work from the watch? Yes. The watch mirrors the notification and the same actions, on Apple Watch and Wear OS.

Alerts on the home screen

So you don't miss anything important, Diablesse shows an Alerts card at the top of your Diary whenever something needs your attention. That way, even if you miss the notification, the alert is right there when you open the app. Works on iPhone and Android.

What shows up in Alerts

• Opened insulin expiration — when your basal or rapid insulin is close to expiring (within 7 days) or has already expired. Tap the alert to open your Profile and mark a new vial or pen.
• Today's medications — when a medication's scheduled time has passed and it hasn't been logged yet today.

The card is discreet: it only appears when something is pending. When there's nothing, it disappears on its own — and you're never required to log anything to clear it.

How to remove an alert

• Tap the ✕ on the alert to dismiss it. It goes away for the rest of the day and comes back the next day if the situation continues (insulin still expiring, medication still not taken).
• If you resolve the situation — renew the insulin or log the medication — the alert disappears on its own, with nothing else to do.

Meals and water

Meal and hydration reminders keep arriving as regular phone notifications. They do not appear in the Alerts card, to keep your home screen clean.

Frequently asked questions

Will the alert go away if I do nothing? On the same day, only by tapping the ✕. The next day it reappears if the situation still exists, and it goes away for good once you resolve it (renew the insulin or log the medication).

Why don't I see the card? Because nothing is pending right now — that's expected.

Can I see a history of past alerts? No. Alerts reflect what's pending right now; they don't keep a history.

Estimated HbA1c: what it is and how to use it

The estimated HbA1c (or estimated average glucose) is a value generated automatically by the app based on the glucose readings you log in the diary. It gives an approximate view of your glycemic control over the last 90 days (about 3 months).

How it's calculated

The app calculates the average of your glucose over the last 90 days — a window close to what the lab test represents (about 3 months) — and applies the ADAG formula, the standard for estimating the equivalent glycated hemoglobin (HbA1c) value.

For the estimate to appear, you need a minimum of data in that window: at least 30 glucose readings spread across 14 or more days within the last 90 days. Below that, the app does not show the estimate, to avoid an unreliable value.

🔍 Important: The result is an estimate, not a lab test.

Important limitations

The accuracy of the estimated HbA1c depends directly on the quality of your records:

⚠️ The more complete and frequent your diary is, the closer the estimate tends to be to reality. However, it never replaces the laboratory blood test.

Reference values

💡 Consult your doctor to learn your individualized target for your case.

How to use this feature

✅ For:

• Tracking trends between appointments
• Identifying whether routine or medication changes are having an effect
• Getting an overview of your glycemic control

❌ Not for:

• Diagnosing diabetes
• Adjusting medications without medical guidance
• Replacing the laboratory HbA1c test

Where to find the estimated HbA1c in the app

1. Open the Reports or Summary screen (depending on the version)
2. Look for the estimated HbA1c or estimated average glucose indicator
3. The value updates automatically as new records are added

Practical example

🧪 Recommendation: Keep getting the laboratory HbA1c test every 3 months (or as advised by your doctor). Use the app's estimated HbA1c as a continuous thermometer between one lab draw and the next.

⚠️ Important notice: The estimated HbA1c is provided for monitoring and awareness purposes only. It does not replace medical evaluation. Any decision about adjusting medications, diet, or insulin must be made exclusively under the guidance of your doctor or healthcare team.

The Trends screen

The Trends screen brings together, in one place, the main indicators of your control over time. At the top, you can switch the period between 7, 15, 30, and 90 days.

Main indicators

Glucose trend

A chart shows your glucose over the period, with the target range highlighted (70 to 180 mg/dL by default). Points outside the range are emphasized.

Time in Range (TIR)

A bar shows the share of the period your glucose was low, in range, and high, as percentages.

Activity and sleep

When you connect Apple Health or Health Connect, Trends also shows:

• Physical activity — number of workouts, total time, and distance
• Sleep — average per night and number of nights recorded

Comparisons

To help you spot patterns, Trends cross-references your glucose with your routine:

• Glucose × workout — average with and without workouts, and the difference between them
• Glucose × sleep — average on good nights (≥ 7h) and on poor nights (< 7h), and the difference

💡 The more complete your records and integrations are, the richer these indicators become. Remember that the estimated HbA1c is an estimate and does not replace the laboratory test.

See and log your glucose without opening the app — in the home screen widget, on the lock screen, and on your watch. It works similarly on iPhone (iOS) and Android; what changes is the name of each feature — for example, Apple Watch on iOS and Wear OS on Android.

The widget

The Diablesse widget shows, at a glance:

• Latest glucose, colored by your range (green in target, red low, amber high) and how long ago it was measured.
• Alerts for medications and opened-insulin expiration.
• CV (the day's variability), today's carbs, and your next reminder.

The larger widget shows more information; the smaller one shows the essentials. Tap the widget at any time to open the app.

Add it on iPhone

1. Touch and hold an empty spot on the home screen until the icons jiggle.
2. Tap the "+" in the top corner, search for Diablesse, and choose the size.
3. Tap Add Widget and then Done.

For the lock screen: hold the lock screen → Customize → Lock Screen → tap the widget area → choose Diablesse.

Add it on Android

1. Touch and hold an empty spot on the home screen.
2. Tap Widgets and find Diablesse.
3. Drag the widget into place and choose the size.

On your watch (Apple Watch and Wear OS)

Open Diablesse on your watch — Apple Watch (iOS) or Wear OS (Android) — to see your latest glucose (colored by range), alerts, CV, today's carbs, and your next reminder, just like the app.

Log glucose from your watch

1. In the watch app, tap the "+".
2. Adjust the value — on Apple Watch, turn the Digital Crown; on Wear OS, use the on-screen controls. The number changes color according to your range.
3. Tap Log.

The glucose appears in the phone app automatically.

Glucose on the watch face

You can put your glucose right on the watch face (a complication on Apple Watch, a complication/tile on Wear OS):

1. Hold the watch face and tap Edit (or customize).
2. Choose a complication slot and select Diablesse.
3. Confirm.

The glucose appears on the watch face and updates on its own. On monochrome faces, the watch uses the face's own color; use a colorful face to see the range color.

Frequently asked questions

Why does "—" appear in the widget or on the watch? There is no recent glucose reading to show yet. Open the Diary in the phone app once to sync — the widget and the watch update right after.

Does glucose take a while to appear on the watch? The watch receives data from the phone. Keep them near each other; when you open the app, the information is sent to the watch.

I don't see color on the watch face. Some faces are monochrome and the watch paints everything with the face's color — that applies to any app. Use a colorful face to see the range color.

Which values do the colors follow? Your glucose range set in the app (Profile → Glucose ranges). Green = in target, red = low, amber = high.

Menstrual cycle and glucose

Diablesse can relate your glucose to your menstrual cycle, helping you spot patterns — for example, whether glucose tends to rise in the premenstrual phase.

How it works

The app reads the cycle data already in Apple Health (iOS) or Health Connect (Android). So if you already track your cycle in another app (Flo, Clue, Apple Health, etc.), Diablesse uses that data — you don't have to log it again.

🔒 It's read-only: Diablesse never changes your cycle data.

How to enable it

1. Open Settings → Integrations.
2. Turn on Apple Health / Health Connect (if it isn't already).
3. Turn on "Menstrual cycle" and grant the read permission when prompted.
4. Tap Sync (or pull the screen down).

ℹ️ The "Menstrual cycle" option appears according to the sex set in your Profile.

What you see

On the Trends tab, when there's enough data, two indicators appear:

• Glucose × menstruation — average glucose on menstruation days compared to other days.
• Glucose × premenstrual (PMS) — average glucose on the days before menstruation compared to the rest. In this phase, insulin resistance commonly rises.

Tap each indicator for an explanation. They also appear in the PDF report and in Export to AI.

Good to know

• The premenstrual phase is an estimate (the days before the start of the recorded cycle). Use it as a trend, not as a diagnosis.
• The indicators only appear when there's glucose logged on the cycle days.
• Your data stays on your device and in your account; it is not shared.

Frequently asked questions

Do I need to log my cycle in Diablesse?
No. It reads from Apple Health / Health Connect.

The cycle option doesn't appear.
Check the sex in your Profile and that the health integration is active.

I enabled it, but no indicators show up.
You need cycle days and glucose on those days. Sync and wait for the cloud to update.

Does this work for people who use Flo/Clue?
Yes, as long as the app is connected to Apple Health / Health Connect.

Accu-Chek meter error codes

The error codes below are shown by the Accu-Chek Guide Me meter itself, not by Diablesse. Diablesse only imports valid readings; when the meter shows an error, no reading is generated to sync.

The table below summarizes the main codes and what to do in each case.

⚠️ Important: This is a summarized reference. For detailed, up-to-date instructions, see your meter's manual and the official Accu-Chek error codes page. If you have questions about how the meter works, contact Accu-Chek support.

🩺 The LO and HI codes, or very high/low results, can indicate a risky situation. Always follow your doctor's guidance and, in emergencies, seek care.

How to connect Diablesse to other health apps

Garmin, Samsung Health, Fitbit, and others

Diablesse integrates with Health Connect — Android's central platform for health data. If you use a smartwatch or health app, just connect it to Health Connect. Diablesse will start receiving your exercise data automatically.

Garmin Connect

1. Open Garmin Connect on your phone
2. Tap More (⋯) → Connections
3. Select Health Connect and enable syncing

Samsung Health

1. Open Samsung Health
2. Tap Profile (bottom-right corner)
3. Tap Health Connect → enable it and choose the data to sync

Fitbit / Google Fit and others

• Open the app's settings and look for Health Connect in the integrations or connections section

In Diablesse:

1. Go to Settings → Integrations
2. Turn on the Health Connect toggle
3. Grant the requested permissions

That's it — your physical activity data appears in your diary automatically.

What is Health Connect?

Health Connect is an Android feature (available on Android 9+) that centralizes health data from multiple apps in one place, with privacy controls. It's like a health "vault" on your phone.

💡 Note: Health Connect must be installed on your device. On most phones with Android 14+ it comes pre-installed. On earlier versions, download it for free from the Play Store by searching for "Health Connect".

Frequently asked questions

Does Health Connect drain the battery?
Not significantly. Syncing only happens while Diablesse is open.

How do I delete a record that came from Health Connect?
Records imported from Health Connect must be deleted in the health app that generated them (for example, Samsung Health, Garmin Connect, etc.). Since the data originates in that app, deleting it only in Diablesse won't remove it at the source — and it could be re-imported. Delete it at the source so the change is permanent.

Garmin/Samsung Health doesn't appear in my Health Connect. What should I do?
Make sure your Garmin or Samsung Health app is up to date. On some Samsung models, Health Connect may be under System settings → Health → Health Connect.

How to connect the Accu-Chek Guide Me meter

Diablesse connects directly to the Accu-Chek Guide Me glucose meter via Bluetooth. This way, the glucose readings taken on the meter are imported into your diary.

Step by step

1. Go to Settings → Integrations
2. Turn on the Accu-Chek Guide Me toggle
3. Grant the requested Bluetooth permissions
4. Keep the meter on and near your phone
5. Tap Sync now

The readings will be imported and appear in your diary.

Automatic sync

Enable Automatic sync so readings are imported whenever you open Diablesse with the meter nearby — no need to sync manually.

Frequently asked questions

The meter isn't found. What should I do?
Check that your phone's Bluetooth is on, that the meter is on and nearby, and that you granted Bluetooth permissions to Diablesse. Then try Sync now again.

Which devices are compatible?
Diablesse currently supports the Accu-Chek Guide Me.

💡 If your meter shows an error code (such as E-1, E-2, or similar), see the article on Accu-Chek error codes.

How to connect Apple Health (iOS) and Health Connect (Android)

Diablesse can exchange health data with your system's platform: Apple Health on iOS and Health Connect on Android. With the integration on, the app imports your workouts and sleep and keeps glucose in sync both ways.

What gets synced

On iPhone (Apple Health)

1. Go to Settings → Integrations
2. Turn on the Apple Health toggle
3. Grant the requested permissions (workouts, sleep, and glucose)
4. Use each data type's toggle to choose what to sync

On Android (Health Connect)

1. Go to Settings → Integrations
2. Turn on the Health Connect toggle
3. Grant the requested permissions in Health Connect
4. Choose which data to sync

💡 Health Connect must be installed on your device. Learn more in the article How to connect Diablesse to other health apps.

Sync on app open / Sync now

• Turn on Sync on app open so data updates automatically whenever you open Diablesse.
• Or tap Sync now to update right away, with the app open.

Imported workouts appear as cards in your diary, and the activity and sleep data feed into the Trends screen.

🔒 Privacy: the data exchange happens locally, between Diablesse and your device's health platform, under permissions you grant and can revoke at any time in your system settings. Diablesse does not send this data to third-party servers.

How to adjust the glucose range in the app

The glucose range defines the limits considered "normal" for your readings. The app uses these values to classify your glucose levels, generate alerts, and track trends.

Accessing the setting

Go to Settings in the main menu and select Glucose Range.

Option 1: Use quick presets

The app offers three presets based on clinical guidelines. Just select the one that best applies to your situation:

💡 The values above are general references. Your doctor may recommend different ranges based on your treatment.

Option 2: Manual custom adjustment

If you prefer or have specific medical guidance, you can set manually:

• Low limit — minimum value considered normal
• High limit — maximum value considered normal

Tap the corresponding fields and type the desired numbers.

Saving changes

After choosing a preset or manually adjusting the limits, remember to tap Save to apply the new settings.

⚠️ Important: Consult your doctor before modifying the glucose range, especially if you use automatic alerts. Poorly adjusted ranges can generate incorrect notifications or inappropriate guidance.

How to configure the language in Diablesse

Diablesse supports multiple languages so you can use the app in your preferred language. The food database is also adapted for each available language, ensuring that food names and nutritional information appear in the corresponding language.

Available languages

How to change the language

1. Go to Settings in the app's main menu
2. Scroll to the bottom
3. Find the language option
4. Tap it and choose your preferred language from the list

Available options

💡 Recommendation: If you use your device in multiple languages or switch frequently, the "Same as iOS" option is the most convenient. Otherwise, choose a fixed language for a consistent experience.

Important to know

• The language change is immediate — no need to restart the app
• The food database will reload in the new language automatically
• Entries already saved in the diary are not affected by the language change

How to set up reminders in Diablesse

Reminders help you keep up your care routine day to day, avoiding forgetfulness and promoting healthier habits. To manage them, follow the step-by-step guide below.

Accessing the reminders screen

Go to Settings in the main menu and select Alerts.

Available options to configure

On the reminders screen, you can enable, disable, or adjust the following alert types:

How to adjust each reminder

1. Tap the reminder type you want.
2. Turn the switch on or off as needed.
3. If available, adjust the time, frequency, or interval.
4. Repeat the process for other reminders.

Saving your settings

After making your adjustments, tap Save. Some alerts are saved automatically when you leave the screen.

⚠️ Important tip: For medication reminders to work correctly, make sure your medications are added in Settings → Profile. Basal insulin reminders will only appear if the "basal insulin use" option is enabled in your profile.

How to set up your profile information

Keeping your profile data up to date is essential for the app to provide personalized, accurate guidance, such as medication adjustments and alerts.

Follow the step-by-step guide below:

1. Open settings
   Tap Settings in the main menu and select the Profile option.
2. Edit your information
   On the profile screen, you can:
   • Change your photo in the app
   • Update personal data
   • Enter weight and height
   • Register medications in use
   • Enable basal insulin use – receive notifications when needed
3. Save your changes
   Don't forget to tap Save at the end so the new settings take effect.

Opened insulin expiration

From now on, Diablesse reminds you before your insulin expires after being opened — without writing it on your phone's calendar.

Every insulin, after first use, has a discard date (which varies by type — for example, 28, 42, or 56 days). The app calculates that period and reminds you in advance.

How to enable it

1. Open Settings → Profile and scroll to "Opened insulin expiration".
2. You'll see two independent toggles: Basal and Rapid. Turn on the one(s) you use.
3. Enter "Opened on" — the date you started using the current vial/pen.
4. Enter the shelf life after opening, in days (according to your insulin's leaflet).

Done: the app shows how many days are left and the expiration date, with colors — green, orange when it's close, and red when it expires or has expired.

When you're notified

You get notifications 7 days, 3 days, and 1 day before expiration, and on the day itself.

🔔 These are important alerts: they appear even with Focus / Do Not Disturb modes on — just like medication reminders.

When you start a new insulin

When you open a new vial or pen, tap "I started a new vial/pen". The app restarts the countdown from today and reschedules the reminders automatically.

Your information is kept

The expiration setting is synced to the cloud (it appears on all your devices) and is included in the backup. So if you restore a backup or switch devices, the tracking continues.

💡 Tip: the Basal and Rapid tracking is separate, so you can follow both insulins at the same time, each with its own date.

⚠️ Discard dates vary by insulin type and manufacturer. Always check the leaflet and the guidance of your doctor or pharmacist. Diablesse is a support tool and does not replace that information.