Privacy

What is stored, and where

• Your ratings are stored in your browser, on your device.
• So are the ids of the last 25 puzzles you solved. The trainer uses them to not repeat a puzzle.
• The browser keeps them in IndexedDB, or in localStorage if IndexedDB is not available.
• If the browser blocks both, they last only until you close the page.
• The trainer never sends your ratings or puzzles to a server.
• There is no account and no sign-in.

Cookies and tracking

• The trainer sets no cookies.
• It has no ads and no analytics.
• It loads nothing from other sites. The puzzles and the fonts come from this site.

Error reports

If the page breaks, it sends a short error report to this site. The report has:

• the error name, its message and the first lines of its trace;
• the kind of page and the version of the trainer;
• if you use a phone or a computer, and your browser name and major version;
• the time.

The report has no ratings, no puzzles and no address. Emails, IP addresses and long numbers in the message are replaced before it is sent. The server writes the report to a log. The log does not keep your IP address or cookies. Cloudflare deletes these logs after 7 days.

Who receives data

Cloudflare hosts this site. Like any host, it receives your IP address when your browser asks for a page or a puzzle file. We do not use it for anything else. We share data with no one else.

Delete your data

Clear this site's data in your browser settings. That removes your ratings and solved puzzles. The trainer then starts over. We hold no copy, so there is nothing else to delete.

Contact

Questions? Write to kamadorueda@gmail.com.