Modal Verbs is an Android application by Havvadem that provides a comprehensive and interactive guide for learning modals. The app covers the most common modals including ability, possibility, obligation, necessity, certainty, uncertainty, expectation, prohibition, permission, imaginary situations, past habits, criticism, preference, suggestion, and offers.

The app offers a quiz section to test your knowledge and track your progress. The quiz features a variety of questions that test your understanding of modal verbs and their usage. The app also includes links to other resources for learning English grammar, such as The Basic and Advanced Grammar and The English Guide.

Modal Verbs is an excellent resource for anyone looking to improve their English language skills, particularly those who want to master the use of modals. The app is free to download and use, making it accessible to anyone who wants to learn. The interface is user-friendly, and the content is well-organized and easy to follow. Overall, Modal Verbs is a highly recommended app for anyone who wants to learn English modals.