Fill the gap. Learn why.
GramStar is a grammar game for English learners. Each sentence has a gap: pick the right word from four tiles, and GramStar tells you why it fits, or why your choice doesn't. Right or wrong, every answer teaches you something.
A run is 10 sentences and takes about two minutes, so it fits into a coffee break.
EVERY ANSWER EXPLAINED
• Nearly 50,000 questions across 170 grammar points, each with an explanation
• "Why it works" after a right answer, "Why not?" after a wrong one
• Tenses, articles, prepositions, modals, conditionals, the passive, reported speech, inversion and more
• US or UK English: you choose which answers count as right
THREE LEVELS
• Beginner (A1–A2): everyday basics, no timer
• Intermediate (B1–B2): work and exam English, 15 seconds a sentence
• Advanced (C1+): polish and nuance, 10 seconds a sentence
• Not sure where you fit? A 2-minute placement test finds your level
• Each level keeps its own rating, and you can turn the timer off anytime
A REASON TO COME BACK
• The daily puzzle: five sentences, the same for everyone at your level that day
• A medal for 6 out of 10 or better: S, A, B or C
• Streaks, with streak freezes that cover a missed day
• 19 badges to collect, and titles to earn: Stargazer, Rising Star and Supernova
• Topic mastery bars show what's sticking, and you can practice a weak topic in 5 quick questions
• Share your grade, streak and badges as cards
CALM BY DESIGN
• A new space sky every run, with soft ambient sounds
• No ads. No account. No tracking.
• Your progress stays on your iPhone
FREE, OR GO FURTHER WITH NOVA
GramStar is free to play: 2 runs a day across all levels, plus the daily puzzle.
GramStar Nova adds:
• More runs every day: 15 Beginner, 10 Intermediate and 5 Advanced, up to 30 runs a day
• A review deck of your mistakes
• Fuller explanations, with example phrases
• Up to 5 streak freezes instead of 2
Nova comes as a Monthly or Yearly subscription, or as Lifetime, a one-time purchase. The app shows prices in your local currency.
SUBSCRIPTION TERMS
Payment is charged to your Apple Account when you confirm the purchase. Monthly and Yearly subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. If an introductory offer is available, the app shows its price and length before you buy, and the subscription then renews at the regular price. You can manage or cancel your subscription in your iPhone's Settings › [your name] › Subscriptions. Lifetime is a one-time purchase and doesn't renew.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://gramstar.app/privacy
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