Moon Phase Tracking
See how your cycle aligns with the 8 lunar phases.
Now Available on iOS
Live in sync with the moon.
Luna Sync maps your cycle to lunar phases — revealing your inner seasons with privacy-first intelligence.
Download on the App StoreYour data never leaves your device. End-to-end encrypted. No hidden costs.
✦
100% Free · No Paywall · No Hidden Subscriptions
Designed for your rhythm
The Inner Seasons
Your cycle has four distinct seasons.
Private by Design
All health data encrypted and stored locally.
Luna Sync vs. Traditional Period Apps
| Traditional Period Apps | Luna Sync | |
|---|---|---|
| Price | 10–20 USD/month subscription | 100% Free · No Paywall |
| Data Privacy | Data uploaded to cloud servers | Local-First · On-Device Only |
| Ads & Tracking | Medical ads & analytics SDKs | Zero Ads · No Tracking SDKs |
| Moon Sync | Not available | 8 Lunar Phase Visualization |
| Offline Mode | Requires internet connection | Works 100% Offline |
| Account Required | Account & email sign-up | No Account Needed |
Cyclical Living
Moon Phase Tracking
See how your cycle aligns with the 8 lunar phases. Luna Sync maps your personal data against the moon's journey.
Inner Seasons
The Inner Seasons
Your cycle has four distinct seasons: Inner Spring, Summer, Autumn, Winter. Luna Sync helps you understand each phase.
Privacy First
Private by Design
All health data is encrypted and stored locally on your device. No cloud sync, no accounts, no tracking.
Knowledge Hub
Why Privacy Matters
Your health data belongs to you. Most cycle tracking apps send intimate health data to external servers — some even sell it to advertisers. Luna Sync was built differently: everything stays on your device. We use AES-256 encryption, no cloud accounts, no analytics SDKs, no data collection. Luna Sync doesn't need an internet connection to function — download once and it works fully offline. Your body, your data, your iPhone.
Your data, your device.
Luna Sync operates entirely on-device. We have no servers, no cloud, no analytics SDKs. Your health data never leaves your iPhone — not even for "improving the app." End-to-end encrypted, zero-knowledge architecture.
✦ AES-256 Encryption
✦ On-Device Only
✦ No Analytics SDKs
✦ No Account Required