Questions, bug reports, feature ideas, or press enquiries — everything reaches the same small team, and we read all of it.
The fastest way to reach us is email. Write to [email protected] and we will normally reply within two to three business days. We answer in English and German.
To help us respond quickly, tell us which page you were on, which browser and device you were using, and what you expected to happen.
The coin does not land, sound will not play, statistics reset unexpectedly — tell us what broke and we will fix it.
Want a new coin design, a different language, or multi-coin flips? Many of our features started as a suggestion from someone using the site.
Ask about the data we handle or exercise your rights under GDPR. See our Privacy Policy for the full picture.
Writing about coin tosses, randomness, or decision-making? We are happy to help with quotes, data, and assets.
A few questions come up often enough that the answer may already be waiting for you. Coin Flip is completely free with no account required. Your statistics and flip history are stored only in your own browser, which is why they disappear if you clear your browsing data or switch devices. And yes — every flip is a genuine 50/50, decided by your browser's cryptographic random number generator.
The frequently asked questions on our homepage cover the mathematics in more depth, including why a short run of heads is completely normal.