← Gexmark

Privacy Policy

Gexmark app. Effective date: 26 June 2026.

Gexmark is a real-world exploration game: you uncover the map by physically moving. This policy explains what data we process and why. We collect the minimum.

The gist in one paragraph: the app needs location to record your route and open map cells — including with the screen off. Your exact path stays on your device. Only the opened cells (~130 m hexagons) and timestamps go to the server — not your continuous track by the metre.

What we process

Precise location, including in the background. Used only for gameplay: to determine which cells you've walked through. The continuous GPS track is stored locally on the device and is not sent to the server.
Opened cells and game progress. The server stores identifiers of opened cells (H3), open times, coins, and placed/found capsules.
Account. The nickname you choose. When you sign in with Google or Yandex — an anonymized account identifier from that provider to restore progress on a new device. We do not store your email or provider profile.
Notifications. Permission to show notifications (recording status, capsule finds).

Why

To record your exploration and open cells (the core mechanic).
To show the shared “world layer” — where players have already been — and the discoverers' leaderboard (by nickname).
To restore your progress when you change devices (Google or Yandex sign-in).

What other players see

A cell you open appears on the shared world map. If you opened it first, your nickname is shown next to it as the discoverer — that's part of the game. Your exact route is never visible to other players.

Data sharing

We do not sell your data and do not share it with advertisers. There are no ads in the app. Data is stored on our servers in the European Union (Germany), transmitted over HTTPS, and used only to run the game.

Storage and deletion

You can delete your account right in the app (Settings → Delete account). On deletion, your identity is erased (nickname, Google/Yandex sign-in links, coins) and sign-in becomes impossible. Your trace on the shared world map (opened cells) is kept anonymized — as an “unknown explorer” — because the world record is permanent. If you can't access the app, you can request deletion by emailing gexmarkgame@gmail.com. You can pause recording at any time.

Device permissions

Precise location (ACCESS_FINE_LOCATION), background location for recording with the screen off, notifications. Without location the game does not work — it's the whole point.

Children

The game is not intended for children under 13 and does not knowingly collect their data.

Changes

We may update this policy; the current version is always available at this address with its effective date.

Contact

Privacy questions: gexmarkgame@gmail.com

Account deletion instructions: account-deletion.html