Your data and privacy
Your ObiOne profile and saved learning data stay in this browser on your device. You can manage and delete them yourself on My Page.
What is saved on your device?
ObiOne uses your browser’s local storage (localStorage) to remember your profile name, favorites, badges, learning history, and saved activity results. Preferences such as your selected book language are also saved locally.
These profiles and saved learning records are not stored in the ObiOne database or synced between devices or browsers. Another browser or device has its own local data. Anyone using the same browser on a shared device may be able to access its local profiles, so choose a profile name you are comfortable sharing.
How to delete your profile and saved data
- Open My Page in the browser and on the device where your data is saved. Select the profile you want to delete.
- Scroll to “Your data on this device”.
- Type the confirmation phrase shown, then select “Delete data for” your profile.
This permanently deletes the selected profile and its saved favorites, badges, learning history, and activity results. Other profiles on the same device keep their data. If you delete the only profile, ObiOne creates a new Guest profile.
You can also remove all locally saved ObiOne data through your browser’s settings by clearing site data for this website. This removes all local profiles and preferences in that browser. Deleted local data cannot be restored by ObiOne.
Local storage and the privacy notice
Local storage keeps data in your browser between visits. ObiOne uses it for the features described above and to remember when you dismiss the privacy notice with “Got it”. Dismissing the notice simply hides the message; it does not change how your learning data is stored. Clearing site data makes the notice appear again.
Website traffic and external content
Local profile storage is separate from the requests needed to load the website and its learning resources. For example, ObiOne sends book IDs or game identifiers to the server to load your favorite resources. The app also includes Vercel Analytics to measure website usage. Deleting a local profile does not delete website traffic records.