Article: APK Installer is an app that installs APK files on your Android device. Use the following steps to download and install APK Installer: Open the Google Play Store. Type "APK Installer" in the search bar. Tap "APK Installer". Tap "Install". It's at the top of the app. Use the following steps to allow APK Installer to install apps from Unknown Sources. Open the Settings app. Tap Apps & notifications. Tap in the upper-right corner. Tap Special Access Tap Install unknown apps Tap APK Installer Tap the toggle switch next to Allow from this source. It's in the File Manager app. This displays all apps you have downloaded from the internet. Samsung Galaxy devices also have a folder called "Installation Files" specifically for APK files. You can find your APK files here or in the Downloads folder. All APK files have a file extension that ends with ".APK". The first time you open an APK file, you will be asked if you want to select a program to open the file with. Tap the APK Installer app icon and then tap Always at the bottom of the screen.
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Download APK Installer. Tap the System tab on the Droid Hardware Info app. Allow APK Installer to install apps from Unknown Sources. Open the "Downloads" folder. Tap the APK file of the app you want to install. Tap the APK Installer app and tap Always.