A period tracker
without an account
By Ben Jonas Goedeke · 2 min read · checked against its sources · updated 10 Oct 2026
What you write in a period tracker is about as personal as data gets. Before you choose one, it is worth knowing where your entries go.
Five things to check
Whether it needs an account or an email address. Whether your entries are stored on the company's servers. Whether the app shows ads or carries tracking tools. Whether you can export everything as a file. And what a shared link or partner feature actually sends.
How Tideline handles it
There is no account and no sign-up. Your entries are stored on your iPhone and nowhere else; we run no server for them and cannot read them. There are no ads and no tracking. If you subscribe, Apple takes the payment and RevenueCat tells the app you have paid; neither receives anything you log. Outside the EU, the UK and Switzerland, the app also notes how far setup got, as the name of a screen, never your answers.
The trade-off
Without an account there is no cloud copy of ours. Your entries come along in your iPhone backup, and you can export them as a file any time. Without a backup, a lost phone means a lost record, so keep backups on.
Sharing with a partner
If you switch it on, the app makes a link that you send yourself. It holds your name, cycle dates and lengths, and your notes on what helps you if you chose to share them. It never holds your daily entries, your mood or your symptoms.
Keep the record your doctor needs. Tideline is a period and mood tracker for iPhone: write one sentence a day, and after two cycles it puts the week before your period next to the week after it starts. Free to track, no account.
Get Tideline on the App Store
Keep reading
Sources
- Tideline: Privacy policy