Rhino English Grammar helps you understand and practice English grammar through short, focused lessons and plenty of hands-on practice. From the basics to advanced structures, every topic is explained simply, shown with real examples, and reinforced with quizzes that make it stick.

What you can do

Learn with clear lessons. 30 grammar topics, from nouns, articles, and tenses to conditionals, passive voice, and reported speech. Each topic is broken into focused subtopics with plain-language explanations, real examples, and color-coded grammar so you can see how every sentence works.

Practice your way. Pick the mode that fits the moment:

• Tests: short, scored quizzes for each subtopic.

• Quiz Builder: build a custom quiz from any topics you choose.

• Survival: keep answering until you miss one.

• Timed Quiz: race the clock.

Turn mistakes into progress. The Mistakes Notebook saves every question you miss, with its full explanation, so you can review it and clear it for good.

Listen as you learn. Tap to hear any explanation, example, or conversation read aloud.

See grammar in real conversations. Every topic includes natural dialogues that show the grammar in use, not just as rules.

Stay motivated. Track your streak, days learned, and tests passed, and set a daily reminder so practice becomes a habit.

Make it yours. Bookmark any question or topic to revisit later, and switch between light and dark themes.

Free and Premium

Free: the Foundations and Tenses topics, with all their lessons, tests, and practice, free forever.

Premium: a single one-time purchase (no subscription) unlocks all 30 topics, the Mistakes Notebook, the custom Quiz Builder, all-topics practice modes, dark themes, and more.

Private by design

Rhino English Grammar keeps your learning data on your device. There are no ads, no accounts, and no sign-in. Your progress stays on your phone. See our Privacy Policy.

Get the app

Download on Google Play (link coming at launch).

Support

Questions, feedback, or need help? Email us at admin(at)fidplay(dot)com and we will be glad to help.