TalkToMe: Your first App Inventor app - 6
If you were unable to download the AI2 Companion App from the Google Play
Store, you can follow these step to download it directly to your device.
Go into your phone's settings, choose "Security"
Scroll down and allow "Unknown Sources" by checking the box.
(This allows apps that are not from the Play Store to be installed on the device.)
NOTE: Direct APK download (requires manual updates)
Type this URL into a web browser on your device: http://appinv.us/companion.
The AI2 Companion app will automatically download.
Regardless of which method you use, scanning the QR code or directly typing the link into your
device’s browser, you will see a message similar to this:
Click “OK”. (Don’t worry, the AI2 Companion app will not harm your mobile device.)
Scan this QR code
If you don't have a mobile device, you can still use App Inventor by connecting
with the emulator. Visit: http://appinventor.mit.edu/explore/ai2/setup.html
and follow the instructions under Option 2.