Book UPDATES & DOWNLOADS
From time to time, changes will occur that may affect how apps created in App Inventor work. Be sure to check here for updates, to download additional material, and to get your very own lesson plans:
To test and run Chapter 1's Hi, World! app and Chapter 5's Beat the Bus app, update your device's MIT AI2 Companion app to the new version available directly from MIT App Inventor here or by scanning the QR code that appears after clicking the Help > Companion Information menu link when logged into App Inventor.