What happened in the Flo FTC case

In January 2021, the FTC took enforcement action against Flo Health, Inc. over allegations that Flo shared users' health data, including menstrual cycle dates, pregnancy status, and symptoms, with third-party analytics services including Facebook SDK and Google Firebase Analytics despite promising users that such information would remain private. The FTC case is documented at ftc.gov/cases-proceedings/192-3133-flo-health-inc.

Can I switch from Flo to Euki

You can start using Euki at any time, no import from Flo is required to begin tracking. If you want to preserve your historical Flo data, Flo allows data export (CSV format) which you can keep as a personal record, though Euki doesn't currently import it. Your future tracking data with Euki stays on your device.

Does Euki track pregnancy

Yes. Euki covers pregnancy tracking in addition to period cycles, sexual health, contraception logging, and STI information. It is broader in scope than its minimal UI might suggest. Euki is developed by the National Institute for Reproductive Health, which means reproductive health coverage is part of the core mission.

comparisons

Flo vs Euki: Mass Market Data Broker vs Privacy-First App

Flo settled a $59.5M class action for sharing your reproductive health data. Euki is free, on-device, and backed by a nonprofit. Here's how they compare.

The download numbers tell one story; the FTC enforcement action tells another Flo is the most downloaded period tracker in the world. Its prediction algorithms benefit from the largest dataset in the category. Its feature set is genuinely comprehensive. The FTC also took enforcement action against Flo in 2021 for sharing users' reproductive health data with Facebook, Google, and Flurry without consent. A class action over the same conduct settled for $59.5M in September 2025 (Reuters 2025 09 25). These are public facts from federal records. Euki is a nonprofit backed app with a fraction of Flo's downloads. Its UI is functional rather than polished. Its prediction accuracy is lower because it doesn't have Flo's dataset. It is also free, on device, account free, and has no documented history of selling user health data. The feature gap is smaller than it appears The common assumption is that private apps sacrifice features. Euki covers period tracking, fertile window prediction, sexual health education, contraception logging, STI information, and pregnancy tracking. It runs on both iOS and Android. The gaps compared to Flo are real but narrower than expected: Flo's predictions are mo