Hi HN,

I built Vidyaarthi.ai to solve a problem I witnessed firsthand: students in India who understand concepts perfectly in their mother tongue but fail exams because education is in English.

The problem is massive - 260 million students in India study in English-medium schools, but most speak Hindi or regional languages at home. They end up memorizing without understanding.

Our solution: - Voice-based AI tutor (no typing needed - crucial for vernacular users) - Explains any concept in conversational Hindi with culturally relevant examples - Optimized for Indian accents and code-mixing (Hindi-English)

Technical challenges we solved: - Voice recognition for heavy accents and background noise - Handling code-mixed languages (Hinglish)

Early traction: 500+ active users, organic growth through WhatsApp shares

We're bootstrapped and running Meta ads now. Would love feedback on: 1. How to reach Tier 2/3 city users effectively? 2. Monetization models that work for price-sensitive markets? 3. Similar problems in other countries we could expand to?

Try it: https://play.google.com/store/apps/details?id=ai.vidyaarthi....

Tech stack: React Native, Whisper API for voice, custom fine-tuned LLM

Happy to answer any questions or share learnings about building for the next billion users.