DML (Diagram Modeling Language) is a free UML application available for Android users. It is designed for users who want to create and edit UML diagrams on their mobile devices. The application is a mix between Visio and Powerdesigner, offering a wide range of features for diagram modeling.

The application has a user-friendly interface, with a right panel that displays a property editor, shapes, multi-select, and object tree. These tools make it easy for users to create UML diagrams quickly and efficiently. However, it should be noted that DML is currently in technology preview (alpha) mode, meaning that it is not yet fully developed. The developer, Capslock, estimates that it will take at least 6 months to finish the application.

Overall, DML is a promising UML application for Android users. It offers a range of useful features for diagram modeling and has a user-friendly interface. However, users should keep in mind that it is still in development and may have some limitations or bugs.