About LearnClash
Quiz duels are fun. LearnClash makes them teach.
LearnClash combines turn-based 1v1 duels, any-topic question generation, ELO ranking, and 3-stage spaced repetition. The result is a short daily learning loop: pick a topic, play a round, review what you missed, and come back when the memory is ready to be tested 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 to a 3-minute duel.
What is LearnClash
LearnClash is a competitive learning app where you play 1v1 quiz duels on any topic and retain what you learn through built-in spaced repetition. Each duel has 18 questions across 6 rounds, played asynchronously with a 48-hour turn window. Available free on iOS and Android in English, German, French, and Spanish.
| Feature | LearnClash treatment |
|---|---|
| Topic engine | Questions are generated on demand for any topic. No fixed category list. |
| Matchmaking | Turn-based 1v1 duels with ELO ranking and 8 tiers from Iron to Phoenix. |
| Retention | 3-stage Mems spaced repetition built into duels and practice. |
| Mode | Asynchronous turn-based, 48-hour turn window. Never real-time. |
| Monetization | Premium subscriptions only. No ads in any tier, ever. |
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 unlimited duels, all topics, ELO ranking, one practice session per day, one topic creation per day, limited Clash Chat, and one weekly 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 | Unlimited duels, all topics, ELO ranking, one daily practice session, one daily topic creation, limited Clash Chat, no ads |
| Premium monthly | $7.99 / month | Unlimited practice, unlimited topic creation, unlimited Clash Chat, advanced stats, cosmetics, 3 streak freezes per week |
| 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 each question can return when it matters. 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 Mems | 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.
Press kit and brand assets
Journalists, podcasters, and partners can use these LearnClash brand assets and contacts directly. For interviews or written quotes about LearnClash or Pluxia GmbH, email press@learnclash.com; David usually replies within 48 hours. For product or support questions, use support@learnclash.com instead.
- Logo (PNG, 1024×1024)
- Logo (SVG, vector)
- Founder portrait (JPG, high-res)
- Founder portrait (WebP, web)
- App screenshots (English)
- Brand colors
Brand colors
One-paragraph fact sheet (copy-paste friendly)
Quick fact sheet: LearnClash is a competitive learning app from Pluxia GmbH (Baar, Switzerland). Founder and sole developer: David Moosmann. Live since September 2025 on iOS and Android. Free with Premium ($7.99/mo, $59.99/yr, 7-day trial). 8 ELO tiers (Iron to Phoenix), 3-stage Mems spaced repetition, any-topic question generation, and a growing LearnClash blog in English, German, French, and Spanish. Wikidata: app Q138771266, founder Q138771338.
Frequently asked questions
What is LearnClash?
LearnClash is a competitive learning app where you play 1v1 quiz duels on any topic and retain what you learn through built-in 3-stage spaced repetition. Built by Pluxia GmbH (Baar, Switzerland) since September 2025. 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 shipped globally, with full localization 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, no third-party trackers in the app.
How is LearnClash different from Quizlet or Kahoot?
LearnClash is the only major learning app combining ELO-ranked 1v1 quiz duels with built-in spaced repetition in every mode. Quizlet's free tier dropped spaced repetition in 2024. Kahoot is classroom-first with no persistent ELO across sessions. Anki has SRS but no multiplayer or game design.
Pick a topic. Your first round takes 3 minutes.
Free to play. No ads. No credit card.