ND Lingo - Sell Project

Built this for my wife's English tutoring business. 10 paying students use it daily. Then I realized: this is bigger than one tutor with ten students.The StoryMy wife teaches English in Ukraine. Group classes. Private lessons. Her students needed speaking practice between sessions—but they were too afraid to practice with humans.So I built an AI tutor they could talk to. No judgment. No embarrassment. Just practice.Then I added mistake tracking. Then auto-generated weekly review lessons from those mistakes. Then a teacher dashboard so she could see everything. Then gamification—streaks, badges, stars—because I noticed her students actually came back when there was something to lose.I'm a developer. Not a language school operator.This app could serve hundreds of teachers. Thousands of students. Someone with the right distribution—connections to language schools, online tutoring platforms, education marketplaces—could turn this into something much larger.Why Schools Will Pay For This🎯Auto-Generated Weekly ReviewsAI catches every mistake. Categorizes it. Every Monday, students get a personalized review lesson built from their own screw-ups. Zero teacher prep.🧠See What Students Want to LearnWhen students create topics or practice specific words, teachers see it. The only app that reveals what students actually want—not just what they did.🎤Native Audio—Not Speech-to-TextGemini Live processes native audio directly. It hears exactly which sounds students mispronounce—not just transcribed words. No speech-to-text → text-to-speech pipeline. Real pronunciation feedback.🏆Gamification That Actually Works27 badges. Streaks. Stars. Weekly challenges. Students practice because they can't break their streak—not because you told them to.The Hard Parts Are DoneVoice AI integration with Gemini Live APIReal-time mistake tracking via function callingAuto-generated weekly review lessonsTeacher dashboard with class analyticsStudent progress tracking & insights27-badge gamification systemStreak tracking with milestone celebrationsSubscription tiers (Starter/Plus/Unlimited)Usage limits and billing managementClass codes for group enrollmentPrivate student invite codesCEFR levels A1-C2 with adaptive difficultyPWA that installs on any phoneMulti-language support100+ React components, production qualityWhat's left? Distribution.What You're GettingProven with 10 paying students — real daily usage, real engagement, proof it works. (Please note customers are not included in the sell. I just ask that my wife can continue using the app for her existing private and group tutoring students.)Complete source code — React 18 + TypeScript frontend, FastAPI backendFirebase infrastructure — Auth, Firestore, Storage, ready to transferTeacher dashboard — create lessons, manage students, view analyticsStudent app — voice chat, progress tracking, badges, streaksSubscription system — tiers, usage limits, billing management built inGamification engine — 27 badges, 5 categories, streak celebrationsDocumentation — architecture notes, setup guides, environment configsTech StackReact 18TypeScriptViteTailwind CSSFirebase AuthFirestoreFirebase StorageFastAPIPythonGoogle Gemini Live APIWebSocketPWAClean architecture. Production-quality code. 100+ components, 21 custom hooks. This isn't a weekend hack—it's months of development work, shipped and working.Revenue PathsB2B to language schools — teacher dashboard is built for thisWhite-label for tutoring companies — multi-tenant architecture readyDirect-to-student subscriptions — tiers already builtCorporate English training — companies pay premium for employee developmentExpand to other languages — Spanish, French, German learnersAffiliate/referral program — gamification hooks ready for viral mechanicsBy The Numbers10Paying Students100+Components27Badges6AI Personas6CEFR LevelsWorking Software. Real Users. Ready to Scale.The hard parts are done. It needs someone with distribution to take it further.I just ask that my wife can continue using the app for her existing private and group tutoring students.