About LunaCycle
LunaCycle is a private, anonymous period and cycle tracker built on one principle: your reproductive health data is yours — it should never be sold, leaked, or used to target you.
Our mission
We believe women's health apps got privacy backwards. Mainstream trackers turned intimate cycle data into ad inventory. LunaCycle exists to give you accurate cycle, fertility, pregnancy, and perimenopause tracking without the trade-off of surrendering your data. You should be able to understand your body without leaving a trail behind you.
What makes LunaCycle different
- Anonymous Mode — log every cycle day with no account, no email, no profile tied to your identity.
- On-device encryption — your entries are encrypted at rest, never copied to the cloud by default.
- No data selling — a clear promise. We never sell your data to anyone, ever.
- Full control — access, export, or delete everything anytime, in Your Data & Compliance.
Privacy by design
LunaCycle aligns with GDPR principles: minimal data collection, transparent practices, and your right to be forgotten. The free tier shows only small, non-targeted sponsor ads; LunaCycle Plus is completely ad-free. Read our full practices in the Compliance and Privacy pages.
Who it's for
LunaCycle is for anyone who tracks a cycle — whether you're managing periods, trying to conceive, navigating pregnancy, or moving through perimenopause. If you've ever wanted a tracker that treats your data with the respect it deserves, this is for you.
Start tracking privately — free
Anonymous Mode, encrypted on your device, no data selling. The private period tracker.