Compare period tracker apps
Short answer
These pages compare Lunation with other period trackers on the points that decide how private an app is: whether you need an account, where your data is stored, whether it is sold or used for ads, what the App Store privacy label says, and how to delete it. Every fact links to the company’s own policy, its store listing, a regulator or an independent review.
- Lunation vs FloPrice, platforms, accounts, ads and App Store privacy labels side by side, with Flo’s 2021 FTC settlement and the 2025 Meta jury verdict explained.
- Lunation vs ClueAccounts, EU versus US data storage, research sharing, ads and App Store privacy labels side by side, and where each app is stronger.
- Private period tracker apps comparedApple Health, Clue, drip, Euki, Flo, Lunation, Natural Cycles and Stardust compared on accounts, data storage, ads, privacy labels and deletion.
How these comparisons are written
Lunation is made by Holdone Software SRL, which also publishes these pages, so we hold them to a few rules. We describe what each company’s policy, store listing or regulator says rather than rating other apps ourselves, we say where other apps are stronger, and we leave out anything we could not confirm. Each page shows the date its facts were last checked and lists its sources.