Cornerman
Privacy
Cornerman collects nothing. There is no account, no analytics, no tracking, and no server to send anything to.
What is stored
Your round, warning and rest lengths, and which gym's branding you last chose, are kept in your own browser's local storage — on your device, readable only by this site. Clearing your browser data removes them. On Apple TV the same three settings live in the app's own preferences on the device.
What leaves the device
The whole app — the artwork, the bell, the wooden clapper — is delivered in the page itself and then cached, which is what lets it keep working when the gym's wifi drops.
There is exactly one request it can make, and only if you ask for it. When you enter a gym's code, it fetches that gym's theme: a public file holding their name, colors and logo. The only thing sent is the code you typed. No identifier and no account goes with it, nothing about the request is kept on the server, and the answer is stored on your device so it never has to ask twice.
Third parties
There are none. No advertising, no analytics provider, no embedded fonts or scripts from anywhere else, no cookies.
Children
The app is rated 4+ and collects no data from anyone, of any age.
Changes
If this ever stops being true, this page changes before the app does.