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.

Designer Layout

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.

Blocks Layout

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.

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