What is App Inventor?
App Inventor is software developed by Massachusetts Institute of Technology (MIT), a research university in America.
It allows users to create simple apps and learn about the way that they work in a fun manner. There is no need to learn how to program with text editors as everything is based around blocks, a bit like Scratch.
To open App Inventor 2 (the current version of the program) click the button in the top right. You will need to log in with a Google account.
There are two layouts to App Inventor, Designer and Blocks. You can switch between them with the bottoms in the top right corner.
Viewer - This is a mock-up of what your app will look like.
Components - Each component can be renamed or deleted here.
Palette - Drag the component that you want to use in your app, into the centre.
Properties - Edit the settings for each component.
Media - Upload images and sound here before they can be used in your app.
Viewer - This is space for you to drag blocks to make things happen.
Blocks - Drag the code block that you want to use into the centre. The blocks connect together like in Scratch.
Warnings - Any errors with your code will be displayed here.
Backpack - Drag code into to backpack to store it for later.