Privacy

Last updated 13 November 2026

Foldlet collects as little as it can. There are no ads and no third-party trackers, and we never sell your data.

Without an account

Your progress, results and settings stay in your browser’s local storage. We don’t receive them.

Usage and crash reports

To see whether the game works, how many people play and whether new players get through the lessons, the game sends us a few anonymous events: that it was opened (with the site or shared link that led there, the kind of device, whether it’s in a browser, on the home screen or in the app, and how many lessons and puzzles you’ve finished and your current streak), lessons and daily puzzles started and finished (with moves and folds), how many seconds you actively played, shares, sign-ups, returning visits, turning the daily email on or off and arriving from it, and error messages if something breaks (with your browser’s user agent). They carry a random id made by your browser, not your email, account or IP address, and we delete them after 180 days. Clearing the site’s data resets the id.

Page views are counted with Cloudflare Web Analytics, which uses no cookies and doesn’t track you across sites.

With an account

• Email address, to send you sign-in codes and, unless you turn it off, the daily email (below). We don’t send other marketing email.
• Name and flag you choose, shown publicly on leaderboards. When you sign up we guess your country from your IP address to suggest a flag; we don’t store the IP address with your account.
• Your solves: moves, folds, time and the replay of each daily puzzle you finish.
• A sign-in cookie that keeps you signed in. It’s the only cookie we set.

If you buy Pro, Stripe takes your payment. We never see your card number; we keep only your Stripe customer and subscription IDs and whether Pro is active.

The daily email

New accounts get one short email a day, around 8am local time, saying the new puzzle is up, with your current streak. To send it at your 8am we store your time zone (like “Europe/London”), taken from your browser when you sign up or turn the email on. We also keep a record of which days we emailed you, so you never get two in a day.

You can turn it off in Account in the game, or with the unsubscribe link at the bottom of every email, which works without signing in and takes effect immediately. The emails have no tracking pixels and the link in them adds only utm_source=reminder&utm_medium=email to the address, so the anonymous event log above can count visits that came from the email, without knowing who you are.

When you ask for a sign-in code we keep your IP address with that code for up to a day, to stop abuse.

Who handles it

Foldlet runs on Cloudflare (hosting and database). Sign-in codes and the daily email are sent by Resend. Payments for Pro go through Stripe. They process data only to provide those services.

Your choices

You can change your name and flag, turn the daily email on or off, or delete your account and everything tied to it, from the Account page in the game. Deletion is immediate and cancels Pro if you have it.

Questions: hello@foldlet.net