The quiz duel
that makes you smarter
Prove what you know against a real opponent. Learn what you don't: every answer is explained, and the questions you miss come back later.
Free in your browser. No signup, no download.
Download LearnClash for free
Pick a topic and play your first round before you even sign up.
Free to play. No ads, even without Premium.
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Why LearnClash?
A duel makes you care about the answer. LearnClash helps you keep it.
Every answer explained
After each question, read why the answer is right. Still curious? Ask Clash, the AI tutor, a follow-up.
A real opponent
Duel a friend or a matched player 1v1 and play your turn when it suits you. Want to play right now? Take on an AI rival.
Get smarter with every duel
Questions you miss come back after 7 days, and again after 90 days once you get them right. That way you keep what you learn.
How it works
Pick a topic
Start with general knowledge or choose from hundreds of topics, from history to space. Can't find yours? Create it.
Choose your opponent
Challenge a friend with a link (they can play the first round in their browser), get matched with another player, or take on an AI rival.
Play your turn
Answer 6 questions in about 3 minutes and read why after every answer. Your opponent has 72 hours to play their turn.
What is LearnClash?
LearnClash is the quiz duel that makes you smarter. You play a real opponent 1v1 on general knowledge or a topic you choose, and after every answer you can read why it is right. Built-in spaced repetition brings back the questions you miss: a missed question is due again after 7 days, and after 90 days once you answer it correctly. Duels are turn-based with a 72-hour window per turn, and six AI rivals are ready when you want to play right away.
Explore trivia questions across dozens of topics, or see how LearnClash compares to other learning apps.
LearnClash in numbers
- LearnClash duels are 18 questions across 6 rounds with 45 seconds per question, played asynchronously with a 72-hour window per turn.
- Every question answered in LearnClash comes with an explanation, free in every tier; follow-up questions to Clash, the AI tutor, are capped (Free: 30 starter messages, then 1 per 24 hours; Premium: up to 200 per 24 hours).
- LearnClash's built-in 3-stage spaced repetition brings a missed question back after 7 days, then after 90 days, before it counts as mastered.
- LearnClash's August 21, 2026 catalog census counted 49,194 live questions across 848 topics; players can create new topics, and questions are generated on demand.
- LearnClash is free for teens and adults (13 and up) on iOS and Android, with no ads in any tier; Premium is $7.99 per month or $59.99 per year.
- LearnClash is built by Pluxia GmbH in Baar, Switzerland, and publishes its Trivia Difficulty Index (80,553 answers, 156 ranked topics) as an open CC BY 4.0 dataset on Kaggle.
Frequently asked questions
Is LearnClash free to play?
Yes. Duels, an explanation after every answer, reviews of the questions you miss and all public topics are free, with no ads in any tier. Premium adds unlimited Solo sessions (fair-use limit of 20 per hour), up to 200 follow-up questions to Clash per 24 hours, private topics made from your own notes and up to 10 duels on your turn instead of 3, for $7.99 per month or $59.99 per year. New subscribers on iOS and Android get a 7-day free trial on the annual plan. See the full plan comparison.
Who will I play against?
A real person, unless you pick an AI rival. Challenge a friend with a link, or get matched with another player; matchmaking considers your rating and the topics you play. Six AI rivals, clearly labeled, are ready when you want to play right now, and rival duels never change your rating.
What makes LearnClash different from other learning apps?
LearnClash puts a real opponent across from you. You duel another person 1v1 on general knowledge or any topic, read why after every answer, and get the questions you missed back later, so you keep what you learn instead of only testing it.
Can I challenge my friends on LearnClash?
Yes. Send a challenge link to any friend, even if they don't have the app yet. They can play the first round of 3 questions in their browser, then install LearnClash to finish the duel: 18 questions across 6 topics, with 72 hours per turn. When you're both around, you can also invite them to play live.
What topics can I play on LearnClash?
Start with general knowledge, or pick from hundreds of topics, from ancient history and geography to space and the human body. If a topic doesn't exist yet, you can create it, and the AI writes and checks new questions for it on demand.
How long does a duel take?
Each turn is 6 questions (3 from your topic, 3 from your opponent's) with 45 seconds per question, which takes about 3 minutes. A full duel has 3 turns per player, but you don't play them in one sitting: play a turn now and the next one once your opponent has played, within 72 hours each time.
Download LearnClash for free
Pick a topic and play your first round before you even sign up.
Free to play. No ads, even without Premium.
