Privacy

Last updated November 3, 2026

Numberforge is a free daily number puzzle. This page explains what it keeps about you and why.

On your device

Your puzzles, stats, coins, shop items and settings (like sound and dark mode) are saved in your browser's local storage. They stay on your device. Clearing your browser's site data removes them.

If you make an account

An account needs only a name you pick. There's no email or password. We keep:

• your name, which other players see on the leaderboards;
• a scrambled (hashed) copy of your sign-in code, so we can recognise it without storing it;
• your game results, streaks and leaderboard scores;
• your coins, shop items and look;
• a record of any coin packs you buy (see below).

Each device can make up to two accounts. To enforce that, when an account is made we keep scrambled (hashed) copies of a random ID for your browser, stored in a cookie and in local storage, and of your network address combined with basic details about your device (browser, screen size, language and time zone). These copies can't be turned back into the original details.

Finished games are also saved without your name to show how players compare.

Payments

Coin packs are paid through Stripe. Your card details go straight to Stripe and never reach us. We keep Stripe's payment reference, which pack you bought, the price and the date, so your coins are added once and kept on your account.

Ads

Numberforge shows ads from Google AdSense to pay for itself. Google and its partners use cookies to show ads, which may be based on your visits to this and other websites. You can read how Google uses this information and turn off personalised ads in My Ad Center. Visitors in the European Economic Area, the UK and Switzerland are asked for consent first. Players who have bought any coin pack don't see ads.

Hosting

The site runs on Cloudflare, which processes basic request data (such as IP addresses) to deliver and protect the site.

Children

Numberforge isn't directed at children under 13, and we don't knowingly collect personal information from them.

Deleting your data

To have your account and its data deleted, contact us with your account name and sign-in code at [add your contact email].

Changes

If this policy changes, the date at the top will change too.