Back in March, app developer Qbix thought it had hit on a great new way to make money from its Calendar 2 app for the Mac.
Instead of charging users, or including intrusive ads, it offered users access to pro features in return for allowing cryptocurrency mining in the background. Apple quickly put a stop to that, and has now updated its app guidelines to explicitly ban background currency mining. Apple objected to the practice at the time, arguing that it was in violation of App Store policy 2.4.2:
Design your app to use power efficiently. Apps should not rapidly drain battery, generate excessive heat, or put unnecessary strain on device resources.
Read full article: 9to5mac.com
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