Privacy Policy
Chess: Play & Learn Online · developer: Malikoglu · package com.malikoglu.chess · last updated 23 September 2026
We collect only what the game needs to run: your account, your rating and your
matches. We do not sell your data. The game is free and is supported by ads served by
Google AdMob: a full-screen ad may appear between finished games, and you can choose to watch a video
to get a move hint in training. In the EEA, the UK and Switzerland we ask for your consent first, and you can
change your choice at any time in Settings → Privacy options.
What we collect
- Google account details — if you sign in with Google we receive and store your Google
account identifier, email address, display name and profile picture URL. Signing in is required only for
online play and the leaderboard; training against the coach works without an account.
- Player name — taken from your Google display name and editable in the game. It is
public: other players see it in matches and on the leaderboard.
- Device identifier — a random identifier the app generates on first launch. It is not
your advertising ID and cannot be linked to other apps.
- Advertising data — the ad SDK (Google AdMob) collects your device's advertising ID,
IP address (used to derive approximate location), device and app information, and ad interactions
(impressions, clicks, rewarded video completions) in order to serve, measure and cap ads and to prevent
fraud. Where consent is required, ads are personalised only if you agree; otherwise non-personalised
ads are shown.
- Game data — points, rating, wins, losses, and the moves and timestamps of your online
matches. Moves are kept so results can be verified and disputes resolved.
- Usage analytics — anonymous events (screens opened, matches started and finished,
sign-in outcome), plus device model, OS version, app version and language.
Why we use it
- to create your account and keep your points and rating across devices;
- to find you an opponent and to pass moves between the two players;
- to settle results, award or deduct points and build the leaderboard;
- to detect cheating — for example results claimed for matches that were never played;
- to understand which parts of the game are used and to fix problems;
- to show ads that keep the game free, limit how often they appear and measure them.
Third-party services
The game uses the Google services below. Their handling of data is governed by
Google's Privacy Policy.
| Service | Data | Purpose |
|---|
| Google Sign-In |
Google account identifier, email, name, profile picture |
Creating and restoring your account |
| Google AdMob |
Advertising ID, IP address / approximate location, device model, OS and app version, ad interactions |
Showing and measuring ads, frequency capping, fraud prevention; personalised ads only with consent |
| Google User Messaging Platform (UMP) |
Your consent choices (IAB TCF v2 consent string), stored on your device |
Asking for and remembering consent in the EEA, the UK and Switzerland |
| Google Analytics for Firebase |
App usage events, device model, OS version, app version, language, app instance identifier |
Usage measurement and diagnostics |
Firebase Analytics follows your consent choice (Google Consent Mode v2): where consent is required, analytics
and advertising storage stay off until you agree. The game contains no social network SDKs. Reminder
notifications are generated on your device and can be turned off in Settings.
Advertising and your choices
- Consent (EEA, UK, Switzerland). On first launch Google's consent form asks whether ads may
be personalised and whether data may be stored on your device. You can change or withdraw your choice at any
time in the game: Settings → Privacy options.
- Advertising ID. You can reset or delete your advertising ID, or opt out of personalised ads,
in your device settings (Settings → Privacy → Ads on most Android devices).
- How often. The first games are ad-free; after that a full-screen ad appears at most after
every second finished game and never during a game. Rewarded videos are shown only when you tap the
Hint button.
- More about how Google uses data from apps that show its ads:
policies.google.com/technologies/partner-sites.
Where it is stored
Account and match data is stored on servers we operate at chess.malikoglu.az, protected by
HTTPS. Analytics and advertising data is processed by Google. We keep account and match data for as long as your account
exists; server request logs (IP address, timestamp) are rotated and discarded within 30 days as part of
normal server operation.
Children
The game is not directed at children under 13 and we do not knowingly collect their data. If you believe
a child has created an account, contact us and we will delete it.
Deleting your data
You can have your account and everything linked to it deleted at any time —
see Delete your account.
Changes
If this policy changes we will update this page and the date above.
Contact
Questions or requests: malikoglu.anar@gmail.com