About LearnClash
Quiz duels are fun. LearnClash makes them teach.
LearnClash is the quiz duel that makes you smarter. You play a real opponent 1v1, read why after every answer, and get the questions you missed back later through built-in spaced repetition. The daily loop is short: pick a topic, play your turn, learn from what you missed, and come back when those questions are due again.
This page covers what LearnClash is, who built it, the company behind it, how the free and Premium tiers work, and where to download brand assets. Or jump straight into your first duel.
What is LearnClash
LearnClash is the quiz duel that makes you smarter: you play a real opponent 1v1, read an explanation after every answer, and keep what you learn through built-in spaced repetition. Each duel has 18 questions across 6 rounds, played turn by turn with a 72-hour window per turn. The app is free on iOS and Android and runs in English, German, French, and Spanish.
| Feature | LearnClash treatment |
|---|---|
| Opponents | Real people, 1v1: friends by link or matched players. Six AI rivals, clearly labeled and unrated, when you want to play right away. |
| Explanations | An explanation after every answer, free in every tier. Clash, the AI tutor, answers follow-up questions. |
| Retention | 3-stage spaced repetition in duels and Solo. A missed question is due again after 7 days, then after 90 days once you get it right. |
| Topics | General knowledge and hundreds of other topics. Missing one? Create it, and questions are generated on demand. |
| Mode | Turn-based with a 72-hour window per turn. When both players choose to join, the same duel can also be played live. |
Who built LearnClash
LearnClash is built and operated solo by David Moosmann, founder and sole developer at Pluxia GmbH. The product began as a response to 12 years of daily QuizDuel rounds with his mother that tested knowledge but never built it. The full founder bio lives at /about/david-moosmann.
The company behind the app: Pluxia GmbH
Pluxia GmbH is the Swiss limited liability company that owns and operates LearnClash. Founded December 1, 2023, in the Canton of Zug. Registered office at Blegistrasse 7, 6340 Baar. UID: CHE-198.527.946 (verifiable on the Swiss Commercial Register). Sole director: David Moosmann.
| Field | Value |
|---|---|
| Legal name | Pluxia GmbH |
| Founded | December 1, 2023 |
| Headquartered | Baar, Zug, Switzerland |
| Director | David Moosmann |
| Address | Blegistrasse 7, 6340 Baar |
| UID | CHE-198.527.946 |
| Product email | support@learnclash.com |
| Press email | press@learnclash.com |
Full legal filings: Impressum.
How LearnClash makes money
LearnClash has no ads in any tier. The free tier includes duels, an explanation after every answer, reviews of missed questions, all topics, 1 Solo session per day, 30 starter messages to Clash (then 1 per 24 hours) and 1 held streak freeze. Premium subscriptions are the only revenue source: $7.99 per month or $59.99 per year, with a 7-day free trial on the annual plan for new iOS and Android subscribers.
| Tier | Price | Includes |
|---|---|---|
| Free | $0 | Duels, an explanation after every answer, reviews of missed questions, all topics, 1 Solo session per day, Clash Chat follow-ups (30 starter messages, then 1 per 24 hours), 1 held streak freeze, no ads |
| Premium monthly | $7.99 / month | Unlimited Solo sessions (fair use: 20/hour), up to 200 Clash follow-ups per 24 hours, private topics from your own notes, up to 10 duels on your turn, a fourth topic card and 3 rerolls per round, advanced stats, cosmetics, 3 held streak freezes |
| Premium annual | $59.99 / year (7-day free trial) | Everything in monthly, best per-month value, free trial for new subscribers |
Full plan comparison: /pricing.
How LearnClash is different
LearnClash sits between study tools and quiz games. It keeps the social pressure of a duel, adds ELO so progress has weight, and uses spaced repetition so the questions you miss come back later. The wedge is simple: competition is the hook, memory is the outcome.
| App | ELO 1v1 duels | SRS in every mode | Any topic | Our take |
|---|---|---|---|---|
| LearnClash | Yes, 8 tiers | Yes, 3-stage SRS | Yes | Competition plus memory, built into one loop |
| Quizlet | No | Study-set centered | User-created sets | Strong for flashcards, less social |
| Anki | No | Yes | User-created decks | Powerful memory tool, high setup effort |
| Kahoot | No persistent ELO | No | Host-created sessions | Great for groups, less personal retention |
| QuizDuel | Yes, 1v1 | No | Fixed categories | Closest duel mechanic, no memory layer |
| Trivia Crack | Limited | No | Fixed categories | Casual play, not built around retention |
Deep dives: vs Kahoot, vs QuizDuel, vs Trivia Crack.
How LearnClash compares
Side-by-side comparisons with the apps people usually weigh it against, written and updated by the founder.
Press kit
Journalists, podcasters and creators find the fact sheet, boilerplate, real app screenshots, b-roll, logos, key art and the founder bio in the LearnClash press kit, with every file and ZIP ready to download. LearnClash is on the Best of Swiss Apps 2026 shortlist (41 of 143 entries) and nominated for the TOMMI Games Award 2026 in the education category. Press enquiries go to press@learnclash.com; product or support questions to support@learnclash.com.
One-paragraph fact sheet (copy-paste friendly)
Quick fact sheet: LearnClash, from Pluxia GmbH (Baar, Switzerland), is the quiz duel that makes you smarter: 1v1 quiz duels against real people, an explanation after every answer, and built-in spaced repetition. Founder and sole developer: David Moosmann. Live since March 1, 2026, on iOS and Android. Free with Premium ($7.99/mo, $59.99/yr, 7-day trial on the annual plan). 3-stage SRS (missed questions are due again after 7 days, correct ones after 90), 8 ELO tiers (Iron to Phoenix), questions generated on demand for any topic: 49,194 live questions across 848 topics at the August 21, 2026 catalog census. App and blog in English, German, French, and Spanish. Wikidata: app Q138771266, founder Q138771338, company Q140154726.
Frequently asked questions
What is LearnClash?
LearnClash is the quiz duel that makes you smarter: you play a real opponent 1v1 on general knowledge or any topic, read why after every answer, and get the questions you missed back later through built-in 3-stage spaced repetition. Built by Pluxia GmbH (Baar, Switzerland) and live since March 2026. Free on iOS and Android with no ads in any tier.
Who owns LearnClash?
LearnClash is owned and operated by Pluxia GmbH, a Swiss limited liability company founded December 1, 2023, by David Moosmann. The company is registered in the Canton of Zug at Blegistrasse 7, 6340 Baar. UID CHE-198.527.946.
Where is LearnClash based?
LearnClash is built and operated by Pluxia GmbH from Blegistrasse 7, 6340 Baar, Zug, Switzerland. The app is available on iOS and Android in English, German, French, and Spanish.
Is LearnClash a real company?
Yes. Pluxia GmbH is registered in the Canton of Zug, Switzerland, with full company filings publicly available under UID CHE-198.527.946. Founded December 1, 2023, by sole director David Moosmann.
How does LearnClash make money?
Premium subscriptions only. LearnClash is ad-free in every tier. Premium is $7.99 per month or $59.99 per year, with a 7-day free trial on the annual plan for new iOS and Android subscribers. No advertising, no data resale, and no ad-network SDKs in the app.
How is LearnClash different from Quizlet or Kahoot?
Quizlet centers on study sets and guided practice, and Kahoot on hosted group games. LearnClash centers on a 1v1 duel against a real person: every answer is explained, and missed questions come back through spaced repetition built into every mode. Anki has spaced repetition but no opponent and no game design.
How much do you really know?
Free to play. No ads, even without Premium.