See it in action
Built for how you actually live
Everything you need, nothing you don't — and it all stays on your device.
Track your menstrual cycle with confidence. All data lives on your device — no cloud, no accounts, no tracking. By design, not just policy.
Lunula is built so that data collection is architecturally impossible — not just against our policy.
No backend servers, no accounts, no outbound connections. Your cycle data never leaves your device unless you choose to export it.
Exports use AES-256-GCM encryption with PBKDF2-SHA256 (210,000 iterations). Your passphrase never leaves your device — not even Lunula can read it.
Zero analytics SDKs, no ad identifiers, no crash reporters. Your data is never sold or shared with any third party, ever.
Export, delete, or reset your data at any time. We have no retention policies because we have no servers to store anything on.
Most apps say they protect your privacy. Lunula's architecture makes data collection technically impossible — there are no servers to send data to.
Powerful tracking tools that respect your body and your privacy.
Log period start and end dates and see accurate predictions for upcoming phases and your next period.
Record symptoms, moods, energy levels, flow intensity, and food cravings with a beautiful, fast interface.
In-app articles explain each phase, what to expect, and how to work with your body's natural rhythms.
Lock the app with Face ID, fingerprint, or a PIN. Your data is protected even if someone has your device.
Choose from 8 accent colours with light and dark mode support. Make the app truly yours.
Everything you need, nothing you don't — and it all stays on your device.
Lunula tracks all four phases of your menstrual cycle with phase-specific insights and guidance.
Lunula is in active beta testing. Join on iOS via TestFlight or Android via Google Play — no account needed, cancel anytime.