Home ↗A LITTLE TRANSPARENCY
Privacy, plain and simple.
Effective September 12, 2026 · Applies to the current version
Accounts and collection
BrainOtter does not ask for an account, payment, or email address. The current app has no analytics tools, advertising trackers, or external font requests. The hosting environment may process standard server logs, including IP addresses and request details, to serve and protect the site.
What stays in your browser
The localStorage key brainotter.progress.v1 stores total XP, completed rounds, daily completion dates, and best scores by game. This data is not sent to an app server or synced between devices. If storage is blocked, you can still play, but progress will not be saved.
Deleting your progress
Use “Reset my progress” on the progress page or clear this site’s data in your browser. Deleted progress cannot be recovered.
Manage my progress ↗