Most cycle trackers store your most personal data on their servers, tied to an account. Quiet Cycles keeps it on your phone — and only your phone.
Open the app — it's free See TTC modeQuiet Cycles is live now as a free web app — no download, no account. Open it, add it to your home screen, and you're tracking in under a minute.
No account, no sign-up, no email. You open the app, answer three things, and you're tracking.
One app, two views. Flip on TTC mode and the whole app re-centers on fertility — same data, different focus.
The home screen counts down to your fertile window and ovulation day, instead of your next period — with a daily status like "high fertility day."
Log ovulation test results and optional morning temperature. Temperature confirms ovulation after it happens — it never pretends to predict it in advance.
A gentle reminder on the day your period is due — the sensible day to test, not before, when false negatives are most common.
Share your fertile-window status with a partner through an encrypted share code. They see the window — never your symptom logs or notes.
No account. No cloud database. No analytics, no ad trackers, no crash reporters. Your data lives on your device, your encrypted backup is a file you control, and a delete-all button wipes everything on demand.
The big apps charge about $10 a month and still keep your data on their servers. Quiet Cycles Premium is $10 for a full month — a one-time payment, no subscription — and your data never leaves your phone.
| Quiet Cycles | Typical tracker | |
|---|---|---|
| Account required | No | Yes |
| Your data stored on a server | No — on your device only | Yes |
| Analytics / ad trackers | None | Usually present |
| Biometric app lock | Yes | Varies |
| Encrypted backup you control | Yes | Cloud backup |
| Premium price | $10 one-time (1 month) | About $9.99/month |
The core tracker is free. Premium — $10 for 1 month or $79.63 for 12 months, a one-time payment on this site, switched on with a code we email you — unlocks:
Everything on this page — fertile-window focus, test and temperature logging, test-day reminders.
PMS, mood and energy correlation cards drawn from your own patterns.
A clean one-page cycle summary you can print or hand to your clinician.
Read-only fertile-window status via an encrypted share code. No server involved.
Quiet Cycles is live now. The core tracker is free, forever — open the app and you're set up in three taps. TTC mode is part of Premium: pay once, get your activation code by email, and enter it in the app.
Premium is a one-time payment — no subscription, nothing renews automatically. When a term ends, buy a new code any time.