# Privacy | Perceptle

Canonical page: https://perceptle.org/privacy
Last updated: 2026-10-16

No accounts; progress kept in the browser; anonymous ranking; cookie-free analytics.

## Key facts
- Daily: 10 tests drawn from 12, the same for everyone on the same date; a new set at midnight local time; they get harder from first to last.
- Scoring: each test scores 0 to 100 by how close the answer is, falling off smoothly with the size of the miss; 10 tests make a total out of 1000.
- Titles: Sharp-Eyed 900+, Keen 800+, Steady 650+, Wobbly 500+, Fooled under 500.
- Reaction test: any reaction up to 200 ms scores 100; tapping before the change, or within 100 ms of it, is a false start.
- Ranking: a finished daily is scored again on the server and compared with everyone who played that puzzle; players see the share they beat, overall and per test.

Last updated October 16, 2026.

## No accounts

Perceptle has no sign-up and asks for no name, email or password.

## Kept in your browser

Your progress, scores, stats and a random anonymous player id are stored in your browser's local storage. Clearing your site data removes them.

## Sent to our server

When you finish a daily puzzle, the page sends the date, your anonymous id, your answers and how long you played, so we can score the run and rank it against other players. We keep these records to run the rankings. They are not linked to your identity, sold or shared.

## Analytics

We count visits and game events with a self-hosted, cookie-free analytics tool that records no personal data and does not track you across sites.

## Contact

[hello@perceptle.org](mailto:hello@perceptle.org)

## Related
- [Perceptle](https://perceptle.org/): today's daily puzzle
- [llms.txt](https://perceptle.org/llms.txt): the whole site in brief