A period and cycle tracker with no account, no server, and nothing in the cloud. Everything you log is encrypted on your phone with a passcode only you know, because we built it so there's nothing for us to hand over.
No download, no account, nothing to sign up for. Add it to your Home Screen and it opens like any other app. Reminders need the App Store app.
That's an architectural choice, and it has consequences. Data held on a server can be breached, sold to a data broker, handed to an advertiser, or produced under a subpoena. Since 2022 that last one stopped being hypothetical for anyone tracking a period in the United States.
KeepCycle takes the choice off the table. There is no server. There is no account. There is no copy of your data anywhere but your own phone, so there is nothing to breach, nothing to sell, and nothing to subpoena.
See how we compare to Flo and Clue, including where they do well →
Privacy-first apps have a reputation for being thin. This one isn't. The free tier is a complete tracker on its own, and Pro adds depth rather than unlocking basic function.
Daily entries with flow, symptoms, and notes, kept as long as you want them and encrypted the whole time.
See where you are in your cycle at a glance, with predicted phases based on your own history.
BBT, cervical mucus, and OPK charting for a full picture of your fertile window.
A clean, formatted PDF summary to bring to an appointment, generated on your phone rather than on a server.
Show a neutral "Daily Journal" instead of a cycle tracker, and swap the home screen icon for a plain notes app.
Track gaps, hot flashes, and brain fog instead of forcing everything into a 28-day cycle.
Local reminders for birth control, HRT, or supplements, scheduled by your phone rather than pushed from anywhere.
Intimacy, testing, and contraception records kept in the same encrypted store as everything else.
Paying for an app is what lets it not need your data. But that's an argument for charging a fair price, not a premium one.
For comparison, the well-known cycle trackers generally run $8–10 a month for their paid tiers. KeepCycle is a fraction of that, and the privacy isn't the upsell: encryption, the PIN lock, and full data export are free and always will be.
No account to create, no server to trust. Your information is encrypted where it's created and stays there.
Not on the free tier, not on the paid tier. KeepCycle carries no advertising and no trackers of any kind.
Well below the industry norm, on purpose. A privacy-respecting app people can't afford protects nobody.
KeepCycle does not collect, transmit, or store anything on our servers, because there are no servers. Everything you enter is encrypted on your device with a key derived from your own passcode, and it never leaves unless you personally export it.
There is no account, no email address, no phone number, and no analytics that identify you. If you delete the app, the data goes with it. We have no copy to delete on your behalf, because we never had one.
The full app, working, with nothing to install and no account to make. Whatever you log stays on your device exactly as it would in the App Store version.
Reminders are the one thing the browser version can't do. That needs the App Store app.
Safari can't add this for you. Apple only lets you do it yourself. It takes two taps.