A free app for Android, by Webrich Software.

Grammar Express: Parts of Speech is an educational application that aims to teach the basics of grammar. It contains over 130 pages of lessons that explain each part of speech with several examples.

The user interface is very simple and easy to use, allowing the user to choose from possible answers. It also provides an interactive progress meter that allows the user to monitor his progress.

The application provides an opportunity to practice grammar by topic.

You can study the grammar rules by topic and also find out what each topic covers.

The application also provides an opportunity to test your progress in terms of grammar.

You can also find out what the current topic is and what you need to do in order to learn more about it.

You can also set a custom timer in order to improve response times under exam time constraints.