Privacy Policy
Last Updated: July 14, 2026
At Sync, your privacy is our core value. This Privacy Policy details how we handle information inside the Sync cycle tracking application and website.
1. Information We Collect
Sync is designed to operate with minimal data collection. The following lists what is tracked and how it is stored:
- Cycle and Symptom Logs: Flow parameters, physical symptoms (cramps, bloating, energy levels), and mood indicators are logged locally on your device.
- Partner Connection Tokens: If you choose to connect with a partner, Sync creates an encrypted connection token. This sharing mechanism can be paused or revoked at any moment.
- Mascot Settings: Your configurations for the Luna AI companion check-ins are saved on your local storage space.
2. Local-First Data Security
We leverage a local-first architecture for absolute privacy. All symptom data, hormonal tracking records, and cycle predictions are stored locally on your device's filesystem. This ensures that your private health logs are kept under your direct custody and are never sent to third-party ad networks or marketing tracking companies.
3. AI Companion (Luna AI) Interaction
When you chat with Luna AI, your text questions are handled securely. In order to respond to custom health and tracking queries, the application contacts our secure proxy server. These messages do not contain any personally identifiable information (such as your email or account parameters) and are not cached to train public generative models.
4. Sharing Controls
You choose if, when, and with whom you sync. Connecting with a partner is entirely voluntary. Once connected, your partner only receives status updates concerning cycle transitions (such as phase changes) to help them understand optimal support methods. No raw symptom logs or specific health journals are ever shared.
5. Contact Us
If you have any questions or queries regarding this privacy statement, please contact us at: noreplysyncmobile@gmail.com.