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.

How to choose a private period tracker

After the FTC's action against Flo for sharing cycle data with Facebook and Google, "private" cannot mean a toggle inside a cloud app. Four things tell you whether a tracker is actually private:

  1. 1. Can the app send data at all?

    The strongest guarantee is structural: an app with no network capability physically cannot transmit your cycle. QuietCycle ships that way. Anything that syncs to an account is only as private as the company's policy this year.

  2. 2. Is there an account?

    An account is a record of you on someone's server, even if the cycle data is encrypted. A tracker that needs no sign-up has nothing to subpoena and nothing to breach.

  3. 3. Is it locked on the phone?

    Private from the internet is not the same as private from whoever picks up your phone. Look for Face ID or a passcode on the app itself. A tracker that also lets you export or delete everything in one tap is a good sign that privacy was designed in rather than added later.

  4. 4. Does it cover your stage?

    Cycle and fertility logging is one job; perimenopause and menopause symptom tracking is another, with different symptoms and a different doctor's summary. Pick the app built for the stage you are in rather than the one with the longest feature list.

  1. QuietCycle icon
    TestFlight beta Health And Fitness

    QuietCycle

    Cycle tracking that can't leak.

    Does:
    private period tracker
    Price:
    Free, no subscription
    Offline:
    Yes
    Account:
    None

    Read the full app page →
  2. Ember Log icon
    TestFlight beta Health And Fitness

    Ember Log

    Private menopause tracker

    Does:
    menopause symptom tracker
    Price:
    Free, no subscription
    Offline:
    Yes
    Account:
    None

    Read the full app page →

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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