Cycle and check-in entries
Periods, flow, symptoms, mood, energy, sleep, food and drink notes, reminders, and settings are written to local storage first.
Local-first by default
Your cycle data starts on your device.
Core tracking is stored locally. Data leaves your device only when you choose an optional connected feature such as encrypted sync or partner sharing.
Last updated August 13, 2026 · Applies to RhythmHer and RhythmHer Partner
Draft — pending legal review. This page describes verified product behavior, but the legal entity, jurisdiction-specific rights, and minimum-age policy must be completed before this becomes the final privacy policy.
Where data lives
Local first, with connected features you control.
Each connected feature has a clear purpose. You can use core tracking without creating an account.
Encrypted cloud sync
If you create an account and enable sync, entry content is encrypted on your device before it is sent to Supabase. Your sign-in email is used for the account.
Partner sharing
You pair with a partner and approve the summary they receive. Raw entries are not shared. You can disconnect partner access.
Voice, reminders, and Face ID
Voice check-in uses the device operating system's speech recognition. Reminders are local notifications. Face ID is handled by iOS; RhythmHer does not receive biometric data.
What we do not do
The boundaries matter.
RhythmHer is designed without advertising or behavioral tracking.
×No advertising networks
×No third-party analytics SDKs
×No cross-app or cross-site tracking
×No IDFA collection
×No sale of personal data
×No raw diary sharing with a partner
Your controls
Manage or remove your data.
ExportCreate a PDF summary or full data export from the app.
Delete local dataRemove entries stored on your device.
Delete your accountRemove your account and synced records through the in-app account flow.
Turn connected features offSync, partner sharing, voice, and reminders can be controlled separately.
Service providers
Used only for specific features.
SupabaseOptional cloud authentication, encrypted sync, and partner services.
Firebase Cloud Messaging / APNsNotifications for the separate RhythmHer Partner app.
Apple / Google speech recognitionUsed only when you choose voice check-in, under the operating system provider's privacy terms.
RhythmHer provides general educational information only. It does not provide medical advice, diagnosis, or treatment. Contact a qualified clinician or emergency services when appropriate.
Questions about your data?
Write to us about privacy, access, export, or deletion.