Privacy

Last updated October 27, 2026. This covers the Chainfall website (chainfall.app) and the iPhone and Android apps.

The short version

You can play without an account. We keep your scores so the leaderboards work, and the name you choose if you put one on them. The free version shows ads from Google, which may use cookies or your device’s ad identifier. You can say no to personalised ads, or buy Remove Ads.

What we collect

A random device id that the game creates the first time you play. It isn’t linked to your real identity. It lets the game know which scores are yours.
Your game results: score, lines, level, time, which powers you used, when you played, and whether you played on the website, iPhone or Android. We use these for the leaderboards, your profile, achievements and to spot cheating.
The player name you choose, if you put a score on the leaderboard. Names are public. Please don’t use your real full name or anything personal.
A link code, which we create so you can use the same name on another device. Only show it to people you trust with your name.
Technical data: like every website, our server briefly records IP addresses and errors to keep the game running and stop abuse.

We don’t ask for your email, real name, contacts, location or photos, and we don’t sell your data.

The free game shows ads from Google: AdSense on the website, AdMob in the apps. Ads only appear between games, or when you choose to watch one for a second chance.

Google may use cookies, your device’s advertising identifier and your IP address to show ads, limit how often you see them, measure them and prevent fraud. Where the law requires it (for example in the EU and UK), the game asks for your consent first. On iPhone, Apple asks whether the app may track you, and you can say no. Ads still appear if you decline, but they aren’t personalised.

Learn how Google uses this information at policies.google.com/technologies/partner-sites. You can turn off personalised ads at adssettings.google.com, and on your phone in its privacy or ads settings.

Purchases

Remove Ads is bought through the App Store, Google Play or our payment provider, and they handle your payment details. We only receive a receipt id, which we use to switch off ads on every device that plays with your name.

Children

Chainfall isn’t made for children under 13, and we don’t knowingly collect information from them. If you think a child has put personal information in a player name, contact us and we’ll remove it.

How long we keep it

Scores and names stay while the leaderboards exist, so past results stay fair and visible. Unfinished games are deleted after a day. Server logs are kept for a short time only.

Your choices

You can play without putting a name on a score.
You can ask us to rename or delete your player name and its scores, or to tell you what we hold about your device. Include your player name and link code so we know the request is yours.
You can clear the game’s data by clearing this site’s data in your browser, or by deleting the app.

Contact

Questions or requests: hello@chainfall.app

If this policy changes, we’ll update the date at the top.