Your cycle, your data, your device.
Full Moon Flow is a simple, private period tracker that keeps all your data on your device — no accounts, no cloud sync, no tracking. Just open the app, tap a day, and log your flow.
What it does
Everything you need for effortless, calm cycle tracking.
Daily Flow Intensity
Log your daily flow intensity (spotting, light, medium, heavy) on a clean, peaceful monthly calendar.
Cycle History at a Glance
See your complete cycle history easily — period duration and cycle length for each past cycle.
Averages & Trends
Know your typical cycle length and observe gentle patterns of how it changes over time.
Gentle Start Estimates
Get a gentle estimate of when your next period might start, based strictly on your personal history.
Full Data Export
Export your data as a standard CSV file anytime. It's your health data — you control it completely.
What it doesn't do
We believe what an app leaves out is just as important as what it includes.
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No accounts to create
No passwords, no emails, no phone numbers, no sign-up forms.
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No data sent to servers
Zero network calls. Your data never leaves your device — ever.
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No ads, analytics, or tracking
No third-party SDKs, no trackers, and no ad networks.
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No fertility predictions
No medical claims or ovulation windows. Simple cycle logging only.
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No notifications (yet)
No unwanted pings or interruptions. You check the app when you choose.
Privacy first
Full Moon Flow was designed from the ground up to keep your menstrual health data completely private. Everything is stored locally on your device in an encrypted database. Nothing is transmitted over the internet. When you delete the app, your data is gone — because it was never anywhere else.
Simple by design
No cluttered dashboards, no gamification, no social features. Just a calm, clean interface that helps you understand your cycle without the noise.