1800 Grammar Tests is a free app and it has 1925 English Grammar questions. Each test contains 10 questions.
You can take the tests in auto-score mode which marks the correct answer automatically, or test mode which gives you the answers after you've finished all ten questions.
– Learn English grammar on your Android
– Can Test English Grammar in offline mode
– Quiz your knowledge with random questions, but not repeated
– Bring your understanding of the language to a new level