Introduction
Calibra ("we", "our", or "the app") is an application for tracking weight and body composition. Your privacy is important to us. This Privacy Policy explains how we handle your data.
Data We Collect
The Calibra app may store the following data that you voluntarily enter:
Body Data
- Body weight
- Body measurements (waist, hips, neck, thighs, arms)
- Body fat percentage
- Height, age, sex (for metabolic calculations)
Usage Data
- Weight and body composition goals
- App preferences (theme, notifications, etc.)
- Weigh-in history and progress
Purchase Data
- License status (Free/Trial/Pro)
- Any redeemed promotional codes
How We Store Data
🔒 Local Storage
ALL your personal data is stored EXCLUSIVELY on your device.
- We use Hive, an encrypted local database
- Your personal data (weight, measurements, goals) is NEVER sent to external servers
- Your data is NEVER shared with third parties
- There is no cloud account or synchronization
In-App Purchases
In-app purchases are handled by Google Play. We do not collect or store payment data. For details, see Google Play's Privacy Policy.
What We DON'T Do
- We DON'T send your personal data to external servers
- We DON'T share your data with third parties
- We DON'T use invasive analytics or tracking
- We DON'T collect data in the background
- We DON'T require registration or accounts
- We DON'T collect personally identifiable information through analytics
Anonymous Analytics (Firebase)
To improve the application and optimize advertising campaigns, we use Google's Firebase Analytics. This service collects only anonymous and aggregated data:
- Number of app installations
- Screens viewed (without content)
- Generic events (e.g., "onboarding completed", "weigh-in recorded")
- Device country and language
- Device type (e.g., "Android 14, Pixel 7")
NOT collected:
- Weight or body measurement data
- Personal information (name, email, etc.)
- Content of weigh-ins or goals
Data is anonymized and used only to understand how the app is used and improve it. For more information, see Firebase Privacy Policy.
You can disable data collection in your Android device settings (Settings → Google → Ads → Opt out of Ads Personalization).
Anonymous Operational Notifications
For operational purposes, the app sends anonymous notifications to the developer in the following cases:
- Completion of initial setup (new user)
- Purchase of the Pro version
These notifications contain only:
- Platform (e.g., "android")
- App version
- Date and time of the event
- Configuration type selected (e.g., "express" or "advanced")
They do NOT contain your name, email, device ID, or any personal data you enter in the app. They are used solely to monitor service health.
Your Control
You have full control over your data:
Export
You can export all your data to CSV format at any time through the app settings.
Import
You can import data from CSV files to restore backups or migrate from other apps.
Deletion
You can delete all your data at any time by:
- Settings → Data Management → Reset Data
- Uninstalling the application
Notifications
The app may send you local notifications for:
- Daily weigh-in reminders
- Weekly summary
- Streak at risk alerts
These notifications are completely local and configurable. You can disable them at any time in settings.
Permissions Required
| Permission | Reason |
|---|---|
| Notifications | To send you reminders (optional) |
| Vibration | For haptic feedback in notifications |
| Boot completed | To schedule notifications after device restart |
Security
- Data is stored locally in encrypted format
- There are no login credentials to protect
- CSV backups are your responsibility
Children
The app is not intended for children under 13 years old. We do not knowingly collect personal data from minors.
Changes to Privacy Policy
We may update this Privacy Policy occasionally. We will notify you of any significant changes through the app or by updating the date at the top.