Rhythumb collects nothing about you. Not anonymously, not in aggregate, not at all.
Last updated 3 August 2026
Most privacy policies are long because the app collects a great deal and the policy has to account for it. This one is short for the opposite reason.
Nothing. Rhythumb has no accounts, no sign-in, no profiles and no analytics. It does not ask for your name, your email address or your location, and it has no advertising identifier. There is no server, so there is nowhere for anything to be sent.
This is not a policy choice that could quietly change in an update without you noticing: the app contains no networking code whatsoever. It cannot make a network request, because nothing in it knows how to.
Four things, and only four, all of them settings you chose yourself:
They are kept on your device so the app looks the way you left it. They identify nobody, they never leave the phone, and they are removed with the app if you delete it. Nothing else is stored — no history, no session count, no record of when or how often you played.
At the end of a session Rhythumb can offer you the music you just made. That recording is created on your phone, kept in temporary storage, and deleted as soon as you move on unless you choose to save it. If you do save it, iOS asks you where to put it and it goes there — to your own device. It is never uploaded, and we never see it.
Rhythumb never uses the microphone. The recording is made from the app's own output — the notes it is playing — and never from the room you are sitting in. The app requests no permissions of any kind, so iOS will never prompt you to grant one.
There are none. Rhythumb contains no advertising networks, no analytics SDKs, no crash reporters and no third-party code of any kind. It uses only frameworks that come with iOS itself.
Rhythumb is suitable for any age. Since it collects nothing from anyone, it collects nothing from children either.
If this ever changes, the date at the top changes with it, and the change would have to appear in an app update that Apple reviews. Our intention is that it will not change: collecting nothing is a large part of what Rhythumb is for.
If anything here is unclear, or you would like to ask a question about it, write to hello@rhythumb.app.