← Back to Home
Last Updated: April 8, 2026
At TriStone Apps, we take your privacy extremely seriously. Our applications, MyCycle and CycleRadar, are built on the principle of Local-First Data. This means we have designed our software so that we never see, collect, or store your personal information on our own servers.
The Core Principle: We do not have any cloud servers of our own for MyCycle & CycleRadar apps. Your data stays where it belongs—on your device and in your personal storage.
1. Data Collection and Usage
Our applications are designed to function without the need for an account or registration with us.
- Personal Information: We do not collect names, email addresses, or phone numbers.
- Health & Intimacy Data: All cycle tracking, intimacy logs, and symptoms are stored in an encrypted database locally on your smartphone.
- No Analytics: We do not analyze your data, read it, or sell it to anyone. We do not use third-party tracking tools or analytics. Your usage patterns remain private.
2. Failure Protection (Cloud Sync)
To enable backup, the apps use your personal Google Drive storage.
- The app creates a private folder in your Google Drive.
- All data is encrypted before it leaves your device by a password of your choice.
- TriStone Apps has no access to your Google account credentials, the backup password, or any other files on your Drive.
3. Innovative Partner Sharing (Family Radar)
If you choose to connect the app with your family member or a friend, the data does not flow through any third-party corporate servers.
- How it works: The app exclusively uses your own Google Drive space.
- What is shared: Only the necessary "mathematical minimum" (cycle length, last period and its length) is sent.
- Privacy: None of your notes, moods, intimacy records or personal texts are ever sent to your partner.
- Encryption: Data on your Drive is secured with strong random encryption. Even if someone looked at your Drive, they would only see an unreadable mess.
4. System Lock and Discretion
To protect against people around you, you can lock the app. When PrivacyManager is enabled, the app locks, and Android prevents taking screenshots and hides previews in the recent apps overview.
5. Device Permissions
The apps may request the following permissions only when necessary for their core functions:
- Notifications: To remind you of upcoming phases or events.
- Biometrics (Optional): To secure the app launch with your fingerprint or face recognition.
- Internet Access: Exclusively for synchronization with your personal Google Drive.
6. Third-Party Services
Our apps do not display advertisements and do not share any data with third-party advertising networks or data brokers.
7. Changes to This Policy
We may update our Privacy Policy from time to time. Any changes will be posted on this page.
8. Contact Us
If you have any questions or suggestions regarding our Privacy Policy, do not hesitate to contact us at:
Email: support@tristone.info