# LearnClash

> LearnClash is a competitive quiz duel app where you pick any topic and play with AI-generated questions at every difficulty level. Players earn ELO ratings across 8 ranked tiers (Iron to Phoenix), and built-in spaced repetition turns duels into lasting knowledge. Free on iOS and Android.

LearnClash generates questions on demand using AI. Each 1v1 duel has 18 questions across 6 rounds, with one topic per round. Players compete asynchronously (72 hours per turn). The skill rating is powered by a Glicko-2 system under the hood and presented as an ELO rating across 8 ranked tiers (Iron to Phoenix), producing balanced matches. A 3-stage spaced repetition system is built into all game modes, scheduling reviews at increasing intervals based on accuracy.

## Links

- [Homepage](https://learnclash.com): App overview, screenshots, download links
- [Blog](https://learnclash.com/blog): Trivia questions, app comparisons, learning science articles
- [Blog: Comparisons](https://learnclash.com/blog/comparison): LearnClash vs Trivia Crack, Kahoot, QuizDuel
- [Blog: Trivia Questions](https://learnclash.com/blog/trivia-questions): Topic question lists with answers and explanations
- [Blog: Learning Science](https://learnclash.com/blog/learning-science): ELO rating, spaced repetition, testing effect
- [Pricing](https://learnclash.com/pricing): Free tier and Premium plans, feature comparison
- [Chrome Extension](https://learnclash.com/chrome-extension): LearnClash New Tab Quiz for Chrome
- [About LearnClash](https://learnclash.com/about/learnclash): Press kit, fact sheet, screenshots, company background
- [About David Moosmann](https://learnclash.com/about/david-moosmann): Founder and sole developer profile
- [App Store](https://apps.apple.com/us/app/learnclash-learn-any-topic/id6756418938): iOS download
- [Play Store](https://play.google.com/store/apps/details?id=com.learnclash.app): Android download

## Agent-friendly formats

Every blog post is also served as raw markdown at the same URL with a `.md` suffix. Example: https://learnclash.com/blog/spaced-repetition → https://learnclash.com/blog/spaced-repetition.md

Content-Type: text/markdown; charset=utf-8. Includes minimal YAML frontmatter (title, description, canonical, published, updated, locale, author, publisher) followed by the article body. Use these URLs for RAG / grounding when citing LearnClash content.

## Optional

- [Privacy Policy](https://learnclash.com/privacy)
- [Terms of Service](https://learnclash.com/terms)
- [Support](https://learnclash.com/support)
- [RSS Feed](https://learnclash.com/rss.xml)
- [RSS Feed (Deutsch)](https://learnclash.com/de/rss.xml)
- [RSS Feed (Français)](https://learnclash.com/fr/rss.xml)
- [RSS Feed (Español)](https://learnclash.com/es/rss.xml)