Here's how you can download the Random App app free for Android devices.
1. Go to the Google Play page for the free app Random App.
2. Tap the Install button.
Use Random App to find apps that you didn't know existed. Just swipe to the right to see a random application. Swipe to the left to go back. Random App is similar to the social networking site StumbleUpon, but it's for Android apps not web sites.