Privacy Policy

Effective October 28, 2026

Quarterfall ("the game") is made by Amer Hamed ("we", "us"). This policy explains what information the game handles, why, and the choices you have. We built Quarterfall to collect as little as possible.

In short

• Your progress and settings stay on your device.
• There are no ads, in-app purchases, analytics or tracking, and you never create an account with us.
• The ranked Daily is online: it keeps your Daily moves and scores on our server under a random player name, so every player is scored the same way. Everything else works offline and stays on your device. You can delete your online data in Settings.
• If the game crashes, an anonymous crash report may be sent so we can fix the problem. You can turn this off in Settings.
• Game Center (iPhone and iPad) and Google Play Games (Android) are optional and run by Apple and Google under their own privacy policies.

Information stored on your device

The game saves your scores, Voyage progress and stars, Daily challenge results, statistics, power-ups, the game in progress and your settings. This information is stored only on your device. It is never sent to us, and we cannot see it.

While a ranked Daily is under way, the game also keeps a record of it on the device until our server has it.

Deleting the game removes this information. Your device's own backup service (such as iCloud or Google backup) may include it, under that service's terms.

The ranked Daily (online)

When you play the ranked Daily, the game connects to our server (the "Daily Service"). It stores:

• a random player id and a public player name such as "Pilot 7K3F";
• if you're signed in to Game Center or Google Play Games, a one-way scrambled form (a hash) of your player id from that service, so your attempt follows you to your other devices. We never store the id itself;
• a one-way scrambled form of a random number this copy of the game makes when installed, to allow one official attempt per installation per day;
• your Daily moves and scores, the times they were sent, the game's version and whether you play on iPhone or Android;
• whether your device passed Apple's or Google's check that the game is genuine (App Attest, DeviceCheck or Play Integrity, through Google's Firebase App Check).

We use this only to run the Daily competition fairly: to score every move on the server, show the boards, keep your attempt safe if your connection drops, and stop cheating. If you play without signing in, your results are unofficial and shown only to you.

Legal basis (EU and UK): providing the competition you choose to take part in, and our legitimate interest in preventing cheating and keeping the service reliable.

Where online data is stored

Your online Daily data is stored by Cloudflare in the European Union. Like every request on the internet, requests are handled on Cloudflare's worldwide network on their way to it. Backups stay in the European Union too: our weekly backups, and the short-term backups that let us undo mistakes, which Cloudflare keeps for up to 30 days.

We work with these service providers, under their data processing terms: Cloudflare (servers, storage, security), Google (Firebase App Check, Play Integrity, Play Games), Apple (App Attest, DeviceCheck, Game Center) and Sentry (error reports). Transfers outside the European Union rely on their standard contractual clauses.

Cloudflare processes your IP address to deliver and protect the service (for example against floods of requests). We don't store it.

How long online data is kept

• The moves of each tray: 90 days, then erased.
• Fair-play review notes: 30 days.
• Your scores and results: until you delete your online data.
• Records of our own administrative actions: 2 years.
• Backups: up to 12 weeks, so a deletion reaches every backup within 12 weeks.
• Request logs hold no personal data except a shortened scrambled player id, and are kept only a few days.

Deleting your online data

In Settings, open "Online data" and choose "Delete my online data". Your player and the link to your Game Center or Google Play Games account are deleted at once. Your past results stay on old boards as "Deleted pilot", with no link to you. You can't start another official attempt the same day. Backups are fully cleared within 12 weeks.

Crash reports

When the game runs into an unexpected error or crashes, it can send a crash report to Sentry, a service that helps developers find and fix bugs. Reports are stored in Sentry's data center in the European Union (Germany).

A crash report contains technical details only:

• what went wrong and where in the game's code;
• the game's version, and recent in-game steps that led to the error (for example, which screen was open);
• your device model, operating system version, language and similar technical details.

Crash reports do not include your name, email address, contacts, location, photos, screenshots or any account information, and they are not linked to your identity. We have set up the service not to store IP addresses.

We use crash reports only to find and fix problems in the game, and keep them only as long as needed for that, at most 90 days. We do not sell them or use them for advertising.

Crash reporting is on by default because it helps keep the game stable. You can turn it off at any time with the "Send crash reports" switch in Settings. When it is off, nothing is sent.

Game Center and Google Play Games

If you sign in to Game Center or Google Play Games, the game sends your achievements and scores to that service so they appear in achievements and leaderboards, where other players may see your player name and score. The game receives your player name from the service in order to show that you are signed in.

Apple and Google handle this information under their own privacy policies. Signing in is optional; the whole game can be played without it.

What we do not do

• We do not ask for or collect your name, email address, phone number, location, contacts or photos.
• We do not show ads or use advertising identifiers.
• We do not track you across apps or websites.
• We do not sell or share personal information.

Children

Quarterfall is a general-audience game suitable for all ages. We do not knowingly collect personal information from anyone, including children. The ranked Daily stores only a random player name and game results. Crash reports are anonymous and can be turned off in Settings.

Your choices and rights

You can turn off crash reports in Settings, delete your online data in Settings, sign out of Game Center or Google Play Games in your device's settings, and delete all game data on the device by deleting the game.

To ask for a copy of your online data, email us with the player name the game shows (such as "Pilot 7K3F").

Depending on where you live, you may have rights over personal information about you, such as access or deletion. Because crash reports cannot be linked to you, we usually cannot identify any report as yours, but you are welcome to contact us with any request or question.

Security

Crash reports and online Daily data are sent only over encrypted connections (HTTPS). Information saved on your device is protected by your device's own security.

Changes to this policy

If the game starts handling information differently, we will update this policy and the date below. The version inside the game is always the current one.

Contact

Questions about privacy? Email novagamesjo@gmail.com.