Readily - Language Learning

A language learning solution that teaches 25 languages to users of 42 native languages through roleplay agents, mini-stories, voice coach, multilingual chat, customized drills & flashcards.

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Inspiration

Around the world, millions of people dream of learning a new language, but quality education often depends on where you live, how much you can pay, and what language you already speak. I wanted to change that.

Language learning is more than memorizing words; it’s a bridge to education, employment, and cultural connection. Yet most apps today feel mechanical, built for people who already have access to stable internet, fluent English skills, and modern devices. That leaves out huge communities of eager learners who deserve the same opportunities.

Readily was born from a simple idea: language learning should be human, inclusive, and accessible to everyone. By combining AI with proven learning science, I wanted to create an experience that feels like having a supportive, knowledgeable friend who is available anytime, anywhere, regardless of your background or resources.

For me, this project is about more than just teaching languages. It’s about using technology to democratize learning, empower communication, and connect communities across borders. Because when people understand each other, they can build a better world together.

What it does

Readily is a comprehensive language learning platform that makes acquiring a new language feel natural and engaging. Here's what makes it special:

  • Immersive Roleplay Scenarios
    Chat with AI tutors who adapt to your level and interests. Practice real-world scenarios like ordering food, job interviews, or casual conversations. The AI provides gentle corrections and cultural context, making you feel confident to speak.

  • Interactive Story Reading
    Read engaging stories tailored to your proficiency level. Tap any word for instant definitions, pronunciation, and usage examples. The app automatically adds new vocabulary to your personalized flashcard deck using spaced repetition algorithms.

  • Global Language Exchange
    Connect with learners and native speakers worldwide. Chat in real-time with built-in translation support, so you can practice confidently even when you don't know every word.

  • Custom Practice Drills
    Personalized exercises that adapt to your learning style and weak points. Choose from fill-in-the-blank, matching, sentence building, listening comprehension, and translation exercises. The AI generates new drills based on your vocabulary and grammar mistakes, ensuring targeted practice where you need it most.

  • Smart Translation Tool
    Instant, context-aware translation that goes beyond word-for-word conversion. Get cultural notes, usage examples, and alternative expressions. The translator learns from your conversations and reading to provide increasingly personalized and accurate translations.

  • Smart Flashcard System
    Our spaced repetition algorithm (based on proven memory science) ensures you review vocabulary at optimal intervals. Words you struggle with appear more frequently, while mastered words fade into long-term memory.

  • Pronunciation Training
    Advanced speech recognition provides real-time feedback on your pronunciation. Practice difficult sounds with visual feedback and native speaker comparisons.

  • Smart Reading Library
    Access a curated library of books and articles adapted to your level. The app tracks your reading progress and automatically adjusts content difficulty as you improve.

The app supports learning 25 languages for users speaking any of 42 native languages, with both free and premium tiers to accommodate different learning goals and budgets.

How I built it

Technology Stack:

  • Frontend: React Native with Expo for cross-platform mobile development
  • Navigation: Expo Router with file-based routing
  • State Management: Zustand for global state, React Query for server state
  • Styling: NativeWind (Tailwind CSS for React Native)
  • Backend: Appwrite for database, authentication, and real-time features
  • AI Services: ElevenLabs for text-to-speech and voice synthesis
  • Real-time Communication: LiveKit for voice/video chat features
  • Analytics: PostHog for user behavior tracking
  • Subscriptions: RevenueCat for cross-platform subscription management
  • Push Notifications: OneSignal for engagement and study reminders

Challenges I ran into

  • Real-time Chat Complexity
    Building a real-time chat system that works reliably across different network conditions was incredibly challenging. I had to implement proper WebSocket management, handle connection drops gracefully, and ensure messages sync correctly when users come back online.

  • Cross-Platform Speech Recognition
    Getting speech recognition to work consistently across iOS and Android, especially for non-English languages, required extensive testing and platform-specific optimizations. Different devices have varying microphone quality and noise cancellation capabilities.

  • Spaced Repetition Algorithm
    Implementing an effective spaced repetition system that actually improves learning outcomes required deep research into memory science and extensive testing with real users. Balancing the algorithm to be challenging but not overwhelming was tricky.

  • Multilingual Support at Scale
    Supporting 42 native languages and 25 learning languages meant handling complex text rendering, right-to-left languages, different character sets, and cultural nuances in translations. The translation management system became quite complex.

  • Performance Optimization
    Keeping the app responsive while handling large amounts of text, audio files, and real-time data required careful optimization. I implemented intelligent caching, lazy loading, and background processing to maintain smooth performance.

Accomplishments that I'm proud of

  • Production-Ready Quality
    Built a fully functional language learning platform with professional UI/UX that rivals commercial apps.

  • AI Integration Excellence
    Successfully integrated multiple AI services to create seamless, natural interactions. The AI tutors feel genuinely helpful rather than robotic, and the speech recognition provides accurate, actionable feedback.

  • True Multilingual Support
    Achieved support for 25 learning languages and 42 native languages with proper cultural adaptation, not just direct translations. The app feels native to users regardless of their background.

  • Real-time Features
    Implemented real-time chat with translation support, typing indicators, and offline message queuing. Users can practice with others worldwide without technical barriers.

  • Educational Effectiveness
    Applied proven language learning science (spaced repetition, comprehensible input theory, CEFR standards) to create features that actually accelerate learning rather than just entertaining users.

What's next for Readily - Language Learning

  • Advanced AI Tutoring
    Implementing more sophisticated AI tutors that can adapt their teaching style to individual learning preferences, provide personalized curriculum recommendations, and offer emotional support during challenging learning phases.

  • Gamification Evolution
    Creating more engaging gamification elements including achievement systems, learning streaks, social challenges, and virtual rewards that maintain long-term motivation.

  • Offline Expansion
    Enhancing offline capabilities to support learners in areas with limited internet connectivity, including downloadable course packages and offline AI tutoring capabilities.

Readily represents the future of language learning – where AI doesn't just provide information, but creates personalized, engaging experiences that adapt to each learner's unique journey toward fluency.

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