Period Tracker and Calendar

67 of 100 · reviews
4.8of 5 · store
52,944ratings on the App Store
500reviews read

An editorial reading of the saved reviews

High prediction accuracy even for irregular cycles with a spread of 27 to 48 days, confirmed by specific reviews. One user writes that the app predicted ovulation more accurately than Inito and LH strips. A documented case of data being shared with third-party trackers is a real product risk.

Screenshots

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What people use it for

Those who want an accurate, quiet tracker for irregular cycles without aggressive notifications, but are willing to accept a privacy trade-off.

What reviews praise

Prediction accuracy for irregular cycles ranging from 27 to 48 days, with several specific confirmations.
No push notifications and no unnecessary questions.
Customizable themes and simple data entry.

What reviews complain about

Documented data sharing with 59 third-party trackers, discovered via the iPhone Privacy Report.
Some symptoms are hidden behind additional access and only return after a version update.
No built-in symptom pattern analysis.

What users experience

1 excerpt from the breakdown. These are individual cases, not a verdict on all users.

I have been using this app on and off for years. I heard Flo sells your information, so I don't trust them. I've never had any problems with this simple period tracker.