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SIMPLE APP DEVELOPMENT

App Development (or Application Development) refers to the process of developing apps that can
run on desired mobile platforms. You can create an application for various purposes such as
education, business, result tabulation, project work, etc. The apps are developed using
programming language such as C, C++ or Java. Even if you are not well-versed with these
languages, you can create apps using free app development software available on the internet. For
example, MIT App Inventor, appypie, nativ, kinetise, etc.

Here, we will learn creating apps using MIT App Inventor.

MIT App Inventor
App Inventor is a free app development tool, provided by Google. With the help of App Inventor,
we can create apps for smart phones. The working of App Inventor is similar to Scratch
programming language in which we drag and drop blocks for making an app. App Inventor has

two basic views:
• The Design View: This view contains all the components required to design an application.

• The Block Editor View: This is the place where we code the components added in the
Design Window and instruct them the actions to be performed by them.
Following are the main parts of the Block Editor.

1. Built-in Blocks: It contains all the predefined blocks in the application. They are responsible
for handling operations like Math, Text, Logic and Control.

2. Component Blocks: It contains relevant blocks for the components we have added in the
Design window.
3. Workspace: It arranges all the blocks for coding in the workspace.
4. Trash: It is used for deleting blocks that are not required.

5. Backpack: It stores the copy of the blocks even when we exit App Inventor.

Let us create an app. To create an app, follow these steps :
1. Open a browser and type www.appinventor.mit.edu in the address bar. Press the Enter key.
2. Click on the Create Apps! Button.

3. Type your Gmail username and password.
4. Click on Next button.

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