Which period apps have shared health data?

Flo (2021)

The FTC alleged that Flo shared health data, including pregnancy status, with Facebook’s and Google’s analytics services after promising to keep it private. Its 2021 order requires Flo to get consent before sharing health data and to have its privacy practices independently reviewed. A later class action ended with $59.5 million in settlements from Google, Flo and Flurry, who deny the allegations, and a jury verdict against Meta. The full story: has Flo shared your data?

Premom (2023)

The FTC and the US Department of Justice said Premom, an ovulation-tracking app made by Easy Healthcare, shared users’ sensitive health data with Google, AppsFlyer and two China-based companies, contrary to its privacy promises. Under the order, proposed in May 2023, Premom is banned from sharing health data with third parties for advertising, must get consent for other sharing, and agreed to pay a $100,000 civil penalty, plus $100,000 to Connecticut, the District of Columbia and Oregon.

Glow (2020)

California’s attorney general announced a $250,000 settlement with Glow, a fertility app, over failing to adequately protect users’ health information, including a password-change flaw and access to user information without consent. The settlement requires Glow to get consent before sharing users’ personal and medical information, and to consider how privacy lapses can affect women in particular.

Apps with a better record

Not every app has this history. In July 2026 the Mozilla Foundation reviewed six period apps for privacy and scored them out of 10: Euki 10, Clue 8, Flo 7, Period Calendar 6, Planned Parenthood’s Spot On 5 and Stardust 2. Clue, based in Berlin, stores data on servers in Ireland and Germany under European privacy law, and we found no US enforcement action against it. Euki stores data only on your phone. Seventh wasn’t part of the review.

How to check an app yourself

1. On the App Store listing, read the privacy label, especially “Data Used to Track You”.
2. In the privacy policy, look for which outside companies get your data, and why.
3. Check whether you need an account, and whether your logs are stored on your phone or on the company’s servers.
4. Turn off optional sharing for advertising or research.
5. Make sure you can export and delete everything yourself.

What Seventh does

Seventh never sells your data and shows no ads. There are no third-party trackers, analytics or advertising SDKs in the app. It works without an account; if you sign in, your cycle is backed up to our servers so it can be restored. Seventh counts app usage itself, without any health values. Every detail is in Seventh’s privacy policy.