Pick a topic. Practice.
Every answer has an explanation.
Free exercises — no signup required
be/have/have got, present simple, present continuous, simple vs continuous — 240 exercises
Choose a subtopic → B1–B2Nouns, articles, demonstratives — 250+ exercises across 5 topics + test
Choose a subtopic → B1–B2Place, movement, time, function, fixed phrases — 300 exercises across 5 topics
Choose a subtopic → B1–B2my/mine, myself, some/any, much/many, each/every — 480+ exercises
Choose a subtopic → B1–B2-ed/-ing forms, adjective order, comparatives, adverbs — 360+ exercises
Choose a subtopic →More topics coming soon — conditionals, passive voice, modal verbs…
"Duolingo tells me I'm wrong but never explains why"
— #1 complaint in App Store reviews of language learning apps
"I've been learning English for years and still mess up articles"
— Articles are among the last grammar features fully acquired, even at C1+ level (Cambridge University Press)
"I want to focus on one thing, not jump between random topics"
— Only 2% of education app users return after 30 days (Adjust Global App Trends 2024)
Articles? Prepositions? Tenses? Pick the topic that trips you up.
Fill gaps, fix errors, choose options. Not just the same exercise over and over.
Every wrong answer gets a clear, contextual explanation. Learn why, not just what.
Yes. You can practice all available exercises without signing up or paying. We offer free grammar exercises with instant feedback on every answer. Spaced repetition is already built in. When we launch the full version, there will be a premium tier with more topics.
Satori is designed for English learners at A2–C1 level (pre-intermediate to advanced) who want to master specific grammar topics. It's especially useful if you're preparing for IELTS, TOEFL, or Cambridge exams, or if you're frustrated with apps that don't go deep enough on grammar.
Duolingo teaches general language skills through gamification. Satori focuses specifically on grammar — you choose one topic (like articles or prepositions) and drill it with varied exercises until it clicks. Every wrong answer comes with a clear explanation of why it's wrong, which is Duolingo's most common user complaint ("tells me I'm wrong but not why").
Satori offers 21 grammar topics with over 1,000 exercises covering Articles, Nouns, Prepositions, Pronouns, Quantifiers, and the English present tenses. Each topic uses several exercise formats — all with instant feedback and explanations. More topics are added regularly.
No. You can start practicing immediately with no signup required. If you want to be notified when the full version launches (with more topics), you can optionally leave your email address.
More topics. More exercises. Track your progress.
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No spam. Just a launch notification.