Understand your cycle, calmly.
HerCycle predicts your period, ovulation and fertile window — and gets smarter with every cycle you log. Track symptoms, mood, water and medication in a private, medical-grade app.
Installs directly on Android today · no account required to start
Everything that matters, nothing that doesn't
Designed to feel calm and trustworthy — no clutter, no noise, no judgement.
Predictions that learn
Next period, ovulation and fertile window, computed from your own history — accuracy improves every cycle.
Symptoms and mood
Eleven symptoms with severity, six moods with notes — see how they map onto the phases of your cycle.
Water and medication
A daily water goal with a gentle ring, plus medication reminders at the times you choose.
Private journal
Searchable daily entries with the day's symptoms and mood attached automatically.
Insights and reports
Cycle statistics, mood trends and symptom frequency — plus a PDF report you can share with your doctor.
Privacy by design
Biometric lock, encrypted sessions, full data export, and one-tap account deletion. Your data is never sold.
Install in under a minute
HerCycle installs directly from this page while we prepare the Google Play release.
Tap the download button on this page from your Android phone.
Find hercycle.apk in your notifications or Downloads folder and tap it.
Android will ask you to allow installs from your browser — this is normal for apps outside the Play Store. Tap Settings, then Allow from this source.
Create an account, sign in with Google, or continue as a guest — your data syncs securely either way.
Ready when you are
Free forever for core tracking. Works offline, syncs when you're back.