PK files can be installed on Android-powered devices just like installing software on a PC. When a user downloads an Android application using an android device, from an official source , it is automatically installed. The APK Files can also be downloaded from the installation, using a non-android device either through a Chrome or Firefox extension or directly from unofficial sites Several Android apps can be used for the process of moving APK files Such apps include android file manager apps, app orientation apps, Users can install unknown APK files by enabling "Unknown sources" from "Accounts and Security" in Settings.
Iphone iOS App Store Package, file is an iOS application archive file which stores an iOS app. Each .ipa file includes a binary for the ARM architecture and can only be installed on an iOS device.
You need to find an agent in the market to register a dedicated account.
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