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 VAG and ULTIMATE VAG plans can be used on the OBDeleven VAG app only, as they're designed exclusively for VAG (Volkswagen Group) vehicles. So, the features and unlimited Credits that come with the PRO VAG and ULTIMATE VAG plans are not available on the OBDeleven app.