Last updated: October 24, 2026.
Stored in this browser
HappyBrain uses browser local storage to remember saved activities, completed reading, session summaries, study notes, plans, and other entries in tools that offer saving. These records are stored on the device and browser you use. They do not automatically sync across devices. Clearing browser storage can remove them.
What happens when you visit
The website’s hosting infrastructure receives normal request information such as your IP address, requested address, and browser details to deliver the site and operate its service. Fonts may be requested from Google Fonts. Links to research sources open third-party websites, which have their own privacy practices.
HappyBrain does not include advertising trackers, a registration system, a public score leaderboard, or third-party analytics scripts. We do not send your game scores, written ideas, or study entries to a HappyBrain database.
Shared devices
Anyone using the same browser profile may be able to view locally saved data. Avoid entering confidential information into tools on a shared device. Browser storage is a convenience, not a secure vault or guaranteed backup.
Export and clear
The Your practice page lets you download your session history and saved activity list. Some writing and planning tools also offer their own exports. You can clear journal records from Your practice, or remove this site’s data through your browser settings. Downloaded files remain on your device until you delete them.
No diagnosis or personal profiling
Activity scores describe performance within a game. HappyBrain does not infer a diagnosis, measure intelligence, or use scores to make eligibility decisions.
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