Privacy

AtomDuello has no accounts. The game is played from our server in Türkiye, which keeps only a random player code; your progress stays on your device, and the app shows Google AdMob ads.

What we process and why

• Player code (random, for example 7K3M-Q9TB, not linked to your name), a one-way hash of its secret key, and when it was created and last seen. Stored on our server in Türkiye so the game can be played from the server and you can invite friends to duels. Legal basis: performance of the service you use.
• IP address. Used on our server in memory only, briefly, to limit abuse such as automated requests and data scraping. It is not written to disk or logs. Legal basis: legitimate interest.
• Your game progress (points, level, streak, collection, settings). Kept only on your device (on iOS also as a copy in the device keychain) and not sent to us. Legal basis: performance of the service and legitimate interest.
• Advertising ID, IP address, device and ad-interaction information. Processed by Google AdMob (Google LLC) to show and measure ads and, with your consent, to personalise them. Legal basis: consent for personalisation, legitimate interest for showing and measuring ads.

An internet connection is required to play. When a game starts, a summary of your progress (your level and which elements you know) is sent to the server to pick questions; it is not stored there.

There is no match history. In duels your opponent appears only as "Opponent"; player codes are shown only in invitations.

What we do not collect

We do not collect accounts, names, email addresses, precise location, contacts, camera or microphone data. The app contains no analytics or crash reporting.

Advertising and consent

The app shows ads through Google AdMob. After first use, depending on your region, the app shows a consent form (Google UMP) and, on iOS, the App Tracking Transparency prompt. If you do not consent, non-personalised ads are shown.

You can change your choice at any time in Settings under "Ad and privacy options".

International transfers

Our game server is in Türkiye, and the content of your traffic does not leave the country through our domain (DNS) service.

Ad data may be processed by Google on servers outside your country, under appropriate safeguards required by law.

Retention

A player code that is not used for 90 days is deleted from the server automatically. You can delete it at once under Settings, Player code, "Delete my player code".

Server backups are encrypted and kept for at most 3 months.

Progress data stays on your device until you uninstall the app. On iOS, the copy in the keychain restores your progress after a reinstall.

Google determines how long ad data is kept.

Your rights (KVKK / GDPR)

Under the Turkish Personal Data Protection Law (KVKK, Article 11) and, where it applies, the GDPR, you may:

• learn whether your data is processed and request information about it
• ask for correction or deletion
• ask for processing to be restricted, or object to it
• claim compensation if you suffer damage

Your player code is the only record we hold about you on the server, and you can delete it in the app. To remove the data on your device, simply uninstall the app.

Requests: info@knowduello.com

Children

The app is intended for users aged 13 and over. We do not knowingly collect data from children under 13.

Changes

If this policy changes, this page will be updated.

Data controller and contact

Data controller: Emre Mert Dübüş (info@knowduello.com)

Email: info@knowduello.com

Privacy policies of our other games