Reviews and ratings are the most important factor of the ranking of the app. Developer must keep a inbox to the comments of the users.

I think server receive purchases recipient send by the app and uses this to validate it.

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You must make your apple ID ready configure apple pay capabilities in XCode for your project Create a sandbox Include text card Make payment request in your project Deal with the output.

Firstly save your app icon which you want to apply then click the edit button select your icon now upload it.

The secure code for the main demo app can be found in the main folder of "drm_license_uri" for key requests.

I can't understand this question. Can you clear it?

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