Privacy
The short version: we count visits and game results, and if you sign up for new game alerts or a waitlist (the Improbable app, or the video tool) we keep your email to send them. We don't sell anything to anyone.
Analytics
We use Google Analytics to see how many people visit and play, and how far they get: games started, rounds won, results shared and alert and waitlist signups. Google sets cookies for this and receives your IP address, browser and rough location. We never send it your name or email.
In the EU, UK, EEA and Switzerland, no analytics cookies are set unless you accept the cookie banner.
You can also block Google Analytics everywhere with Google's opt-out add-on. See how Google uses data from sites like this one.
Ads on this site
This site shows ads from Google AdSense. Google and its partners use cookies and similar technologies to show ads based on your visits to this site and other sites on the internet, and to measure how ads perform. They receive your IP address, browser and rough location, never your name or email.
You can turn off personalized ads in Google's Ad Settings, or opt out of personalized ads from many companies at aboutads.info. In the EU, UK, EEA and Switzerland, you'll be asked for your consent before personalized ads are shown. See how Google uses data from sites that use its services and how Google uses cookies in advertising.
New game alerts
If you enter your email, it's stored with Resend, our email provider, and used only for the list you joined: new game alerts tell you when a new game is out, the app waitlist gets an email when the Improbable app is out, and occasional emails about major updates, and the video-tool waitlist gets one email when that tool is ready. Every email has an unsubscribe link, and unsubscribing stops them for good. To have your email deleted completely, write to TheMathBehindEverything@gmail.com.
The alerts are for people 13 and older. If you're younger, please don't sign up.
Improbable
Improbable gives your browser a random ID, saved on your device, so your runs and your best streak stay yours for the day. If you submit your best, we store that random ID with your streak, how many attempts it took, and the leaderboard name you picked from our approved words. Daily leaderboards are deleted after 30 days.
To see which games and levels people enjoy, Improbable also sends a short summary when you leave a game: the same random ID, which game or level, how many tries or runs, whether you beat the level, your best streak, and how long you played. It doesn't include your name, email or IP address, and it's never linked to your email.
The Improbable app
The app works the same way as the site: it makes a random ID on your phone, and the daily leaderboard, the play summaries and the friends list use only that ID and the leaderboard name you picked. If you add friends, we store who you're friends with and your friend code. Your levels, coins and skins stay on your phone.
The app shows ads from Google AdMob. Google receives your IP address, rough location, device type and how you interact with ads, and, only if you allow tracking when your phone asks, your device's advertising ID, to show more relevant ads. In the EU, UK, EEA and Switzerland the app asks for your consent first, and you can change it any time under Settings, Privacy choices. See how Google uses data from apps that use its services.
Settings, Delete my data, removes everything about you from our server (your scores, name, friends and play summaries) and from your phone, straight away. You can also write to TheMathBehindEverything@gmail.com.
To see how the app is used (which games people play, how far they get, which features they use, and which version of a design they saw when we test two), the app uses Google Analytics for Firebase. It sends events like opening the app, starting or beating a level, finishing a challenge or buying a skin with coins, tied to a random ID that Firebase makes for the app, along with your device type, app version and rough location. It doesn't collect your advertising ID, name or email. Settings, Delete my data, also resets it. See Firebase's privacy information.
Everything else
The games run in your browser and don't need an account. The site is hosted by Vercel, and Improbable's leaderboard and play summaries are stored with Supabase. We don't sell or share your information with anyone other than these providers, Google Analytics, Google AdSense (on this site), Google AdMob and Google Analytics for Firebase (in the app) and Resend. If this page changes, the date below changes with it.
Updated November 7, 2026