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Android 101: How to Sideload Apps by Enabling 'Unknown Sources' or 'Install Unknown Apps'

Jan 23, 2020 05:00 PM
Jan 24, 2020 07:33 PM
Chrome browser installation screen on a smartphone.

One of Android's biggest strengths relative to iOS is how simple it is to sideload apps that aren't on the official app store. Rather than having to sign IPA files or tell your phone you trust a developer every two weeks, you can just enable a setting and be done with it.

Jump to Instructions For: Android 8 & Above | Android 7 & Below

Enabling Sideloading on Android 8 & Higher

Starting with Android 8.0, the process of sideloading apps changed dramatically. No longer is there a system-wide "Unknown Sources" setting — instead, it's now handled on a per-app basis.

This means that when you download an APK with your browser, for instance, you'll have to give your browser permission to install apps. Same goes if you try to install an APK from your favorite file explorer — the file explorer will need explicit permission to install apps as well.

While this is a pretty big departure from the way things worked before, it's actually pretty simple. Just download the APK file for the app you want to sideload, then open the APK with any file manager. You'll then be prompted to allow the permission. Tap "Settings," then enable the switch next to "Allow from this source" on the following screen. From there, hit your back button, then you can resume installation.

Notification alert on a mobile device regarding a security prompt for app installation.
Android 101: How to Sideload Apps by Enabling 'Unknown Sources' or 'Install Unknown Apps'
Android 101: How to Sideload Apps by Enabling 'Unknown Sources' or 'Install Unknown Apps'
Notification alert on a mobile device regarding a security prompt for app installation.
Android 101: How to Sideload Apps by Enabling 'Unknown Sources' or 'Install Unknown Apps'
Android 101: How to Sideload Apps by Enabling 'Unknown Sources' or 'Install Unknown Apps'

Enabling Sideloading on Android 7 & Lower

The exact names of the settings entries listed below may vary slightly from device to device, but the overall process should be very similar. To begin, head to your phone's main settings menu, then look for an entry titled either "Security" or "Lock screen and security."

Settings menu highlighting the "Accounts" option.

Security menu on stock Android

Settings menu on a mobile device displaying options for personalization and security.

Lock screen and security menu on Samsung devices

Settings menu highlighting the "Accounts" option.

Security menu on stock Android

Settings menu on a mobile device displaying options for personalization and security.

Lock screen and security menu on Samsung devices

From this menu, simply tick the box or toggle the switch next to the "Unknown sources" entry, then press "OK" on the popup.

Security settings menu on a mobile device displaying options for device administrators and storage configuration.
Security warning message about personal data responsibility on a mobile device.
Security settings menu on a mobile device displaying options for device administrators and storage configuration.
Security warning message about personal data responsibility on a mobile device.

Sideloading Apps

After that, you're all set up and ready to go. From now on, you can simply download any APK installer file directly to your Android device, then tap the Download complete notification to launch it. From there, press the "Install" button on the following screen, and within seconds, your sideloaded app will be ready to use.

Android 101: How to Sideload Apps by Enabling 'Unknown Sources' or 'Install Unknown Apps'
Screenshot of a mobile application installation prompt with options for enabling audio and managing USB access.
Android 101: How to Sideload Apps by Enabling 'Unknown Sources' or 'Install Unknown Apps'
Screenshot of a mobile application installation prompt with options for enabling audio and managing USB access.

Cover image and screenshots by Dallas Thomas/Gadget Hacks

The next big software update for iPhone is coming sometime in April and will include a Food section in Apple News+, an easy-to-miss new Ambient Music app, Priority Notifications thanks to Apple Intelligence, and updates to apps like Mail, Photos, Podcasts, and Safari. See what else is coming to your iPhone with the iOS 18.4 update.

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