Основы HTML is an Android application designed for interactive learning of HTML basics. With this app, users can create their first HTML page directly within the application and see the result in the browser of their device. The app also includes a table of special characters and a web palette of colors.

The app is well-structured, with clear explanations and simple exercises that make it easy for beginners to understand. The interface is user-friendly and easy to navigate, with clear instructions and examples. The app is free to use, although only the first five chapters of the CSS section are available for review. The full CSS section is available in the paid version of the app.

Overall, Основы HTML is an excellent learning tool for those who want to learn the basics of HTML. It is well-designed, easy to use, and provides a solid foundation for anyone looking to build their skills in web development.