Your cycle data never leaves your phone.
Period tracking built on the assumption that this is nobody else's business. No account, no sync server, no analytics, no ad network. Private by architecture rather than by promise.
Why this matters
Most cycle trackers are advertising businesses wearing a health app's clothes. The data they hold is among the most sensitive a person can generate, and it sits on someone else's server under someone else's terms of service.
Ripple has no server. There is no account to create and nothing for us to request, sell or hand over — we never receive your data at all. If you want a backup, it’s encrypted on your phone with a passphrase only you know before it goes anywhere. When your device is the only place the data can be read, who else can see it stops being a policy question.
Private by design, not by promise.
once.
You pay for the app instead of being the product. That is the entire reason there is no ad network and no data to sell — the business model doesn't need one.
Ripple tracks your cycle, not your data.
Zero network connections, zero third-party SDKs, zero analytics. Everything you log is encrypted on your phone, and the only copy that ever leaves it is a backup you encrypted yourself.