Duos AI

Every quiz app forgets your answers the moment a round ends. LearnClash doesn't.Pick any topic. Quantum physics, 90s pop culture, ancient Rome. Challenge a friend or get matched with an opponent at your ELO skill level. Play 18 questions across 6 topics. Every question you get wrong comes back at optimized intervals until you actually retain it.What makes LearnClash different:ELO Rating System: 8 tiers from Iron to Phoenix. Chess-style matchmaking pairs you with opponents who genuinely challenge you. Start at 800, climb based on skill. Any Topic, Any Difficulty: No fixed categories. Over 500 topics, three difficulty levels, questions calibrated to your performance. Spaced Repetition in Every Mode: Not a separate study tab. Built into duels, practice, and every game mode. Questions move through Learning → Known → Mastered stages automatically. Zero Ads, Any Tier: Free players get unlimited duels, all topics, ELO rankings, and full spaced repetition. No ads. No pay-to-win. Built by someone who played QuizDuel daily for 12 years and got tired of never remembering anything. LearnClash is the quiz app that actually teaches.Free on iOS and Android.

Improve your typing by practicing on ENTIRE books — level up and unlock achievements as you type through iconic masterpieces. 80+ classic titles including Alice in Wonderland, Frankenstein, 1984, Dracula, The Art of War, and many more.

YouMind is an AI-powered creation agent that helps you learn, think, and create. Key features include:AI-Driven Creation: Transforms diverse materials into inspired creations using generative AI.Cross-Platform Saving: Save anything from anywhere via browser extension and iOS app.Personalized Learning: Integrates learning and creation, allowing everything to flow together.Ideal for:StudentsContent CreatorsProfessionals seeking to enhance their learning and creative processesYouMind offers a seamless integration of learning and creation, empowering users to generate ideas and content with AI.

Audiotxt.io is a real-time speech-to-text transcription and translation service. It converts spoken words into text and translates them into multiple languages simultaneously. Key features include:Real-time Transcription: Accurately transcribe audio in real-time.Instant Translation: Translate transcriptions into multiple languages instantly.Multilingual Support: Supports a wide range of source and target languages.Ideal for:Meeting participants needing live captions and translations.Content creators generating subtitles.Language learners.Audiotxt.io offers a seamless and efficient way to bridge language barriers and make audio content accessible to a global audience.

Onda is an AI-powered podcast note-taking tool that transforms passive listening into active learning. Key features include:AI-Powered Notes: Automatically generates notes, summaries, and quotes from podcasts.Searchable Insights: Instantly find key moments and insights within podcast episodes.Centralized Knowledge Library: Organizes all podcast notes in one place for easy access and review.Ideal for:Podcast enthusiastsLifelong learnersProfessionals seeking to improve their knowledgeOnda helps you capture, remember, and apply the valuable information you gain from podcasts, turning listening into lasting knowledge.

Turn any Spotify podcast into text. Extract transcripts, generate AI summaries, chat with episodes, and copy or download content effortlessly.