Last updated: 21 November 2025
Sascha Ahlfeld
E-mail: schattenwolf-studio@gmx.de
This privacy policy applies to the mobile application “TCG Base”.
We take the protection of personal data very seriously. Data is processed solely for the purpose of providing and improving the features of TCG Base. The app can be used offline and without an account, with limited functionality.
The following data is stored locally on your device, among others:
These data remain on your device unless you use online sync or backup features.
For login, accounts and optional cloud features (backups, sync, online lobbies) we use the service “Supabase”. The following data may be processed:
Depending on your usage, the following data may also be synchronised:
Service provider: Supabase, Inc., 970 Toft Street, San Francisco, CA 94122, USA
Privacy policy: supabase.com/privacy
Transfers to the USA are based on appropriate safeguards (such as Standard Contractual Clauses under Art. 46 GDPR).
We use “RevenueCat” to manage in-app purchases and premium subscriptions. The following data may be processed:
Payment data (such as credit card information) is processed only by the respective app store and is not stored by us.
Service provider: RevenueCat, Inc., USA
Privacy policy: revenuecat.com/privacy
TCG Base uses “Google AdMob” to display ads, especially reward-based ads that may unlock temporary features in the app. The following information may be collected:
Service provider: Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland
Privacy policy: policies.google.com/privacy
For children and younger users, only ads from Google Play certified ad networks suitable for this age group are shown. No advertising profiles are created for children, and no personalised advertising is displayed to them.
When a reward ad has been watched completely, a server-side verification (SSV) may be triggered. The following data may be sent to our Supabase backend:
No additional personal data is processed in this context.
The app may use the following permissions, only with your consent:
You can change these permissions at any time in your device’s system settings.
The app can be used by users of different age groups. Content and ads are designed to be suitable for younger users as well. We do not create advertising profiles for children and do not show them personalised ads.
We recommend that creating an online account and purchasing premium content should only be done by adults or with the consent of a parent or guardian.
Local data on your device can be deleted at any time via the app or by uninstalling the app. Cloud data (account, collections, backups) will be deleted when you close your account or request deletion by e-mail, unless statutory retention obligations require longer storage.
Under the GDPR you have, among others, the following rights:
To exercise your rights, you can contact us at: schattenwolf-studio@gmx.de
TCG Base uses card data, set information, images and in some cases price information provided by the platform Scryfall.
TCG Base is an unofficial app and is not affiliated with or endorsed by Scryfall or Wizards of the Coast. All trademarks, logos and card names are the property of their respective owners.
No personal user data is sent to Scryfall when using card data within the app.
We may update this privacy policy if the app’s features change or if legal requirements are updated. The latest version will always be available at this URL.
If you have any questions about privacy in TCG Base, please contact:
schattenwolf-studio@gmx.de