Editor's pick

Best private, offline period tracker apps, 2026

After Flo's FTC settlement over sharing cycle and fertility data with Facebook and Google, "private" period tracking can't just mean an anonymous mode bolted onto a cloud app. These two trackers are built the opposite way: your data never leaves the iPhone, and there's no account to leak. QuietCycle handles cycle and fertility logging and ships with no network capability at all, so it physically cannot transmit your data; Ember Log covers the perimenopause and menopause side, logging hot flashes and 100+ symptoms behind Face ID and generating a one-page doctor-visit summary entirely on-device. Pick the one that matches the stage you're tracking.

FAQ

Are these period trackers really private?

Yes. Both store everything only on your device with no account and no cloud. QuietCycle goes furthest: it ships with no network entitlement at all, so it physically cannot transmit your data anywhere. Ember Log keeps your symptom history on-device and locks it behind Face ID.

Do they work offline?

Completely. Neither app needs an internet connection to log or review your data. QuietCycle has no network capability whatsoever, and Ember Log is fully offline by design, so both work on a plane or with Wi-Fi off.

Are they free, and is there a subscription?

There's no subscription on either app. Both are currently free to try in TestFlight beta. Ember Log is designed as a one-time unlock rather than a recurring fee, unlike menopause apps such as Caria that charge monthly.

Which one should I use?

Use QuietCycle if you're tracking your menstrual cycle and fertility, with optional local-only HealthKit integration. Use Ember Log if you're in perimenopause or menopause and want to log hot flashes, mood, sleep, brain fog and other symptoms, then export a clean summary for your doctor.

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