Build Your Dream Extension!

Rapid is an online solution to ease the development of AI2 extension using blocks.

Feature 01

Always Online

Rapid is online. You don't have to install any special software to use.

Feature 02

Drag And Drop

Rapid is powered by blockly. It eases the development of extensions by using drag and drop blocks instead of an advanced programming language.

Feature 03


Rapid have a very fast speed for compiling and programming extensions. It enables you to get your extension ready in a few seconds!

Feature 04

Minimal Interface

We provide you a flawless, easy-to use and customizable material UI.

Feature 05

Very Customizable

You can make use of all Java, Appinventor, Android APIs through blocks. You could even use external libraries (JARs) from withing your extension!

Feature 06

Rapid Support

With Rapid, You will get a very fast support and updates throughout our community or direct support.


Rapid isn't designed to be an entirely commercial project. You could pay a little to help keeping Rapid and gain access to some extra features! We also provide some fair limits on files stored on our servers (Projects and Library Files) and requests made to it to provide you the best experience!

Free Forever
What you will get
  • 20 Projects Per Account
  • 5MB of Cloud Storage
  • 10 BuildServer Requests Per Hour
  • Predefined Package Name
  • Community Support
  • 30 Projects Per Account
  • 10MB of Cloud Storage
  • 15 BuildServer Requests Per Hour
  • Maven Dependency Resolution
  • 50 Projects
  • 15MB of Cloud Storage
  • Private Support
  • 20 BuildServer Requests Per Hour
  • Custom Package Names
  • Extension Analytics & Advanced Protection
  • ALL Features Of Other Paid Plans
  • Unlimited Projects
  • 50MB of Cloud Storage
  • High Priority Support
  • 30 BuildServer Requests Per Hour
  • ALL Features Of Other Paid Plans
  • Unlimited Projects
  • Unlimited Cloud Storage
  • High Priority Support
  • Unlimited BuildServer Requests
  • ALL Features Of Other Paid Plans

Want To Start Creating?