Privacy
No account or wallet connection is needed. Practice progress stays in this browser by default and does not automatically sync across devices.
What stays on this device
Your progress and completed lessons are saved in this browser. Use the button below to remove them. Clearing browser data also removes these records.
What the website saves
We count completions for each lesson by date, without building individual learner profiles. If you send feedback, we save the lesson, rating, text and submission time. These records do not include your IP address, though our hosting service may keep separate access logs.
Google Analytics is enabled to help us understand page visits. Google may use cookies to process visit and device information. See Google’s privacy policy
How long we keep data and how to delete it
Feedback and completion counts are kept for up to 90 days. After submitting feedback, you can delete it from this device. Clearing browser data may remove your access to the delete button. Please do not include contact details, account balances or other private information.