Allow installing apps from unknown sources in your device settings. In Android 8 or higher: tap the downloaded AdGuard APK file and then Install. If installations from a browser are not allowed, you'll get a notification. In this notification, tap Settings → Allow from this source → Back → Install.
Instruction for old Android versions
For Android 7: give the browser access to the repository. Then agree to download APK format. Open the downloaded file and install AdGuard.
For Android 6: open Settings, then select Additional settings in System & Device. Switch on Unknown sources and press OK in the system warning window.(Please note that the path towards these settings may differ depending on a device).
For Android 5: open Settings, then select Security in the Personal section. Switch on Unknown sources and press OK in the system warning window.
