listicles

5 Free Period Trackers That Don't Sell Your Data (2026)

Flo paid $59.5M for sharing cycle data with Facebook. We ranked 5 free trackers with no subscription and no account. Two store data on-device only.

Best free period tracker app with no subscription The short answer is Euki. It is free, does not require an account, and keeps data on the device. That combination is rare. Most free period trackers trade one of those away. They either want an account, keep a server side copy, or fund the product with a business model that makes data sharing risk harder to ignore. Free does not automatically mean unsafe. It does mean you need to ask why the app is free. Euki is nonprofit funded. Drip is open source and community maintained. Spot On is funded by Planned Parenthood. Flo built a huge free tier and then faced FTC action over how user data moved through third party SDKs. The business model matters because it tells you who pays for the product. The privacy split: on device apps vs cloud apps Euki and Drip are the clear privacy leaders in this list because they keep data on the phone. No account. No server copy. No company database holding cycle history. That is the cleanest setup if your goal is to avoid both data monetization and legal production risk. Clue and Spot On sit in the middle. They are better picks than Flo if you want a free app with more features, but they still keep record