The USB Connection option can be tricky, especially on Windows. If you have an Android device but do not have a wireless internet connection, you’ll need to install software on your computer so that you can connect to your Android device over USB. If you do not have a smartphone or tablet, you will need to install software on your computer so that you can use an on-screen Android emulator. If you have a Android-capable Chromebook, choose Option Two below. The MIT App Inventor companion app on your iOS or Android device. You can start building apps without downloading any software to your computer. If you are using a smartphone or tablet device and you have a wireless internet connection, You have four options for setting up live testing while you build apps To see your app on a device while you build it (also called “Live Testing”), you’ll need to follow the steps below. The Designer and Blocks Editor run completely in the browser (aka the cloud).
You can set up App Inventor and start building apps in minutes.