Difference between "APK" file and "iOS" file format.

APK (Android Package) and iOS files refer to the installation packages for mobile applications on the Android and iOS platforms, respectively. Here are the key differences between them:

1. **Platform Compatibility:**
   - **APK:** Android Package files are used for Android devices, including smartphones and tablets.
   - **iOS file:** There isn't a single file type for iOS apps. iOS apps are typically distributed as IPA (iOS App Store Package) files for installation on iPhones, iPads, and iPod Touch devices.

2. **File Format:**
   - **APK:** It is a compressed file in ZIP format containing the app's code, resources, manifest file, and other necessary files for installation on Android devices.
   - **iOS file (IPA):** Similar to APK, an IPA file is a compressed archive containing the app's binary code, assets, and manifest file. However, the internal structure and specific contents differ from APK.