Yes, you can use your Credits on both mobile apps – OBDeleven and OBDeleven VAG. Simply log in with the same user account, and your Credits will be available across both platforms.
The PRO and ULTIMATE plans are also supported on both the OBDeleven app and the OBDeleven VAG app. This means your purchased plan will be recognized across both mobile apps and can be used with all officially supported vehicle brands. Just keep in mind OBDeleven VAG app is for Volkswagen Group vehicles only.