A free app for Android, by Sri Krishna Apps.

The UML Tutorials App is one of the best and most useful apps for learning UML, the most popular language in the software development industry. This is an application that can teach you how to draw UML diagrams, in a very easy and intuitive way.

What is UML, and how does it work?

UML is a language for describing the structure of software systems, in particular, the classes, objects, attributes, and interactions within an application. This language can be used to create the documentation for a system, and also to design and implement the system.

It is a language that has been used in the industry for over 20 years. There are several ways to use UML in your software systems, but the most popular is to use it to create documentation for your software system.

The best part of this app is that it is free. The only thing that you need to do is to download it on your Android device.