Effective date: June 17, 2026
PeriodVol (“the app”, “we”, “us”) is a privacy-first menstrual tracker that estimates how much you bleed per day and per cycle, and predicts your next period, ovulation, and fertile window. This policy explains exactly what happens to your information. The honest summary is simple: the app keeps all of your data on your own device and does not send it anywhere.
We do not collect personal information on any server, because PeriodVol has no server and no user accounts. The health information you enter — period days, flow volume and color, products used, clots, notes, and the dates we predict from them — is stored only on your device. It is never transmitted to us or to anyone else.
We do not ask for your name, email, phone number, or any account credentials. There is nothing to sign up for.
Your entries are saved in your device’s local app storage (on-device database). This data stays on the device unless you choose to export a backup file and move it somewhere yourself. Uninstalling the app, or using “Clear all data” in Settings, removes the on-device data.
PeriodVol may ask for a couple of optional device permissions. Each is used only on your device and is entirely optional:
The Export feature lets you save a backup of your data as a file. Once you export a file, it leaves the app’s control and becomes your responsibility — for example if you save it to a cloud drive, email it to yourself, or move it to another device. We recommend keeping backups somewhere you trust. Importing a backup simply reads that file back into on-device storage.
The app itself contacts no third-party services and contains no third-party tracking code. Fonts and other assets are bundled into the app rather than loaded from external servers.
Because your data lives on your device and we hold nothing, you are always in control:
Where laws such as the EU/UK GDPR, the Australian Privacy Act, or the California Consumer Privacy Act (CCPA/CPRA) apply, this on-device, no-collection design is intended to honor their principles of data minimization and user control. We do not process the legal bases for collection because we do not collect your data.
PeriodVol is intended for people who menstruate and is not directed at children under 13 (or the minimum age in your country). We do not knowingly collect data from anyone — and as explained above, we do not collect data at all.
The information you track is sensitive reproductive-health data, which is exactly why PeriodVol is built to keep it on your device only. PeriodVol is not a medical device. Volume figures are estimates, and predicted dates (period, ovulation, fertile window) are estimates that may be inaccurate and must not be used as a method of contraception. Consult a healthcare professional for medical advice.
If we change this policy, we will update the “Effective date” above and post the new version here. If a future version of the app ever introduced an optional feature that sends data off the device (for example, an encrypted sync you choose to enable), we would describe it clearly here and ask for your consent first.
Questions about this policy or your privacy? Email privacy@periodvol.app.