Master English grammar, one skill at a time.
Find your level with a quick placement test, then practise the rules you need with short daily sessions. Everything works offline.
▶ GET IT ONGoogle PlayWhy learners like it
Short lessons, smart reviews, and practice that never feels repetitive.
Placement test
An adaptive test finds your CEFR level, from A1 to C2, so you start in the right place.
Skill map
See every grammar unit, from tenses to conditionals, and how close you are to mastering each one.
Spaced repetition
The app reminds you to review each rule just before you forget it, so what you learn sticks.
Sentence transformation
Rewrite sentences yourself, like turning active into passive or direct into reported speech.
Weak-spot drills
The app tracks your mistakes and builds practice around the patterns you get wrong most.
Grammar library
Clear explanations, key examples and common pitfalls for every rule, all searchable.
For every level
Follows the Common European Framework of Reference (CEFR).
Your progress stays on your phone
No account and no sign-up. Your progress is stored only on your device. The app is free and shows ads, and you can manage your ad privacy choices in Settings. Read the privacy policy.