A free program for Android, by Kodular.

Kodular is a tool for creating online apps and games without having to learn any programming language. Just drag and drop blocks, create an interface, add your own code, and you’re done. It’s a very easy tool to use, with a friendly interface, so you don’t have to spend hours to learn how to code.

With this tool, you can test your apps and games online, without having to export and compile them. It gives you an easy way to update your app if you change something in the builder. You can also check our servers status easily with this tool.