Is there a period tracker with no ads and no account?

Yes, but few trackers give you both, and the two protect against different things. "No ads" tells you how the app pays for itself. "No account" tells you how much of your history sits somewhere it can be tied to your name. Neither one proves your data isn't being shared, so check all three.

• No ads is a good sign, not a guarantee. In the cases that reached regulators, the harm was not banner ads but data flowing to advertisers. In 2021 the U.S. Federal Trade Commission ordered Flo Health to get users' consent before sharing health data, after finding it had shared it with Facebook, Google and others while promising privacy. In 2023 it moved to bar the maker of Premom from sharing health data for advertising. Mozilla's review of period and ovulation trackers found most collected far more than they needed and were unclear about who saw it. An app with no visible ads can still send what you log to advertising or analytics tools, so ask what it does with your entries, not only what it shows you. Our answer on the best period tracker for privacy sets out the full checklist.
• No account means less to hand over. An account tied to your name and email links your cycle history to you. The Electronic Frontier Foundation notes that most period tracker privacy policies let the company hand data over to comply with legal process, so the practical question is how much the company holds, and whether it is attached to your identity. There are two real routes. One is to keep the data on your device: Apple's Cycle Tracking in the Health app works this way, and Apple says that with two factor authentication on, data synced through iCloud is end to end encrypted. The other is an app that lets you use it without your identity attached: in 2022 Flo added an Anonymous Mode that removes your name, email and technical identifiers from your account. The tradeoff of having no account at all is that a lost or replaced phone can mean a lost history, so find out how an app backs up and restores before you rely on it.
• Neither one tells you whether it understands your worship. A tracker with no ads and no account can still be a plain calendar that has no idea what hayd, istihadah or nifas are. If you also need it to excuse your prayers and count the fasts you owe, see what a period tracker for prayer and fasting must do, and what to look for in a period tracker built for Muslim women for the wider list.

Tracking is worth doing for your body too. The American College of Obstetricians and Gynecologists recommends treating your cycle as a vital sign, which is easier with a record than from memory. If you are leaving Flo specifically, see how the alternatives compare and whether Flo is safe now.

Here is where Nisaa honestly stands on both questions. It shows no third party ads. It does not sell your personal information, and it keeps your cycle and health data out of the analytics and advertising tools used elsewhere in the app. It does not ask for a name, email or password to begin: the first time you open it, it creates an anonymous account, and signing in with Apple or Google is also offered. The tradeoff against Apple's on-device approach is that your entries are stored in that account, encrypted, rather than only on your phone, and you can delete them on request. It is free to download, and the full app is a subscription, which is how it earns its keep instead of through ads. It is on the [App Store](https://apps.apple.com/app/id6756938661).