What Is an APK, Exactly
APK stands for Android Package Kit — it is the file format used to install apps on the Android operating system. Just as a .exe file is used to install software on a Windows computer, an APK file is used to install apps on an Android phone.
Apps on the Google Play Store also arrive on your device as APK files internally — the difference is that the Store handles the process automatically. To install an APK from outside the Play Store, you need to grant one extra permission on your Android phone, which is explained in the installation steps below.
The 2666 bet Android app is available as an APK through the official channel. A separate version is also available for iOS users, likewise through the official channel.