Private cycle and energy planning for iPhone

Plan with your patterns in view.

HerPhase uses your logged cycle timing and optional wellness check-ins to provide estimated phase and planning context. Your data stays on your device in the free-first build.

See the current app How estimates work

On-device data
No account required
No analytics or tracking

HerPhase Today screen with the current cycle-phase estimate and daily context

Clear boundaries

Useful context, without pretending certainty.

Private by default

Cycle settings, daily check-ins, moods, physical tags, and notes stay on the device in the free-first version.

Built for planning

Logged cycle timing and optional check-ins provide general context for your day, calendar, and routines.

Estimates, not predictions

Phase labels are estimates derived from the information you enter. Cycles vary, and estimates can be wrong.

Authentic product captures

See what HerPhase actually does.

These current screens show the estimate, check-in, calendar, insights, settings, and in-app explanation—without invented mockups.

HerPhase daily check-in screen for recording symptoms and observations — **Check-in**Optional observations in your own words.

HerPhase calendar screen showing recorded dates and estimated cycle phases — **Calendar**Your entries and estimates over time.

HerPhase insights screen summarizing patterns from the user's own entries — **Insights**Patterns grounded in what you logged.

HerPhase settings screen with privacy and app preference controls — **Settings**Privacy, preferences, and data controls.

HerPhase How It Works screen explaining that cycle phases are estimates — **How it works**The estimate engine explained in the app.

Wellness only

HerPhase is not a medical device.

HerPhase does not provide medical advice, diagnosis, treatment, contraception, or fertility prediction. Do not rely on it for medical decisions or pregnancy prevention.

Read the full medical disclosure