A LITTLE CLARITY. A LOT MORE ENGLISH.
Small prepositions.
Big understanding.
Make sense of in, on, at, to, and for. Explore clear guides, everyday examples, and little moments of practice that help English click.
No account needed · 32 languages · Go at your own pace
01 — ENGLISH, IN EVERYDAY LIFEUnderstand the rule. See it in life. Try it yourself.
YOUR SPACE TO MAKE PREPOSITIONS MAKE SENSEFIND YOUR STARTING POINT
What would you like to untangle?
Starting fresh or stuck between two little words? There’s a path for that.
A GOOD PLACE TO BEGIN
Your next “oh, now I get it.”
in vs on vs at: the comparison that finally clicks
In the corner, on the corner, at the corner: why the same noun takes three prepositions, and how the verb tells you which one fits.
Explore the guide“在” is not always in: 7 traps for Chinese speakers
From 在桌子上 to go home without to: the seven preposition traps Chinese speakers fall into most — each with a fix and a practice question.
Explore the guideAt the airport: gates, platforms, and hotel check-in
Arrive in London, wait at Gate 12, get on the plane, stay in Room 301: every preposition of a complete trip, from takeoff to check-in.
Explore the guide
LESS MEMORIZATION. MORE MEANING.
Take your English
out into the world.
Arrive in London. Wait at Gate 12. Get on the plane. The same trip, three different prepositions. A real situation makes the difference easier to see—and remember.
Learn through a journeyFROM UNDERSTANDING TO INSTINCT
A little practice.
A little more confidence.
Get the explanation here. Build the habit with PrepoQuest. Practice the contrasts that trip you up, understand each answer, and return to your mistakes.
Make room for a little practiceUnderstand every answer
See the rule, the common trap, and a contrasting example.
Turn confusion into a next step
Practice your weaker preposition pairs and revisit missed questions.
Kingdoms, quests, and streaks
Daily challenges and kingdom adventures keep a small habit alive.
Can I learn here for free?
Yes. Every guide and browser practice question is free to read and use, without an account. The app is a paid download with structured lessons, adventures, and review of your mistakes — check its store listing for the current price.
Who is PrepoQuest for?
Beginner to intermediate English learners who want to stop guessing prepositions — including Chinese-speaking students, exam takers, and working adults. It is an independent study tool, not affiliated with any exam board.
Is the app free?
No. PrepoQuest is a paid download on the App Store and Google Play — check the store listing for the current price in your region. The website’s learning library stays free.
Can I practice offline?
The app supports offline learning once downloaded. This website needs a connection to load its pages; once a practice page is loaded, its questions run in your browser.
Where is my practice data stored?
Website quiz answers stay in the current page session and are not sent to us. We add no advertising or analytics trackers to the website. For app data and support, see the privacy policy.
ONE SMALL STEP, EVERY DAY
Make English a little clearer.
iOS & Android · Paid download · Learn through adventure