M1903 Labs

Apps that respect your privacy. No cloud. No ads. No tracking. Ever.

Our mission

Most apps treat your data as a product. We don't. M1903 Labs LLP builds mobile apps where everything stays on your device — processed locally, never uploaded, never monetised. We believe privacy isn't a premium feature you opt into. It's the only way software should work.

Based in Hyderabad, India. Building for India and the world.

Our Apps

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Sudoku Live

Pure puzzles. Zero data collected.

A full-featured Sudoku game for Android and iOS. Puzzles are generated on-device across four difficulty levels — Easy, Medium, Hard, and Nightmare. Rich game stats tracked locally. No account. No internet required. No data ever leaves your phone.

🔒 Zero data collection 📱 Android & iOS 🎮 4 difficulty levels 📊 Local game stats ⚡ Works offline
Privacy Policy
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ApnaCallr Coming Soon

Your calls. Your messages. Your privacy.

A smart dialer and SMS app built for India — designed to keep scammers out and your data in your hands. Every contact, every message, every call log stays on your device, processed by on-device AI that spots phishing and scam attempts before they reach you.

Built for the realities of India — UPI fraud, fake KYC alerts, lottery scams, phishing links. ApnaCallr recognises the tricks scammers use and stops them silently, locally, without sending a single byte to any server.

🔒 All data stays on your device 🤖 On-device AI scam detection 🚫 No ads · No analytics · No trackers 🇮🇳 Built for India, in India
Free for 7 days  ·  then ₹99/year
That's less than a cup of chai a month.
Available on Android  ·  Coming soon to Play Store

Privacy is the product.

Questions about our apps or philosophy? We'd love to hear from you.

Get in Touch

Enterprise Services

AI Solutions

Intelligent automation and advanced analytics for enterprise.

  • Intelligent process automation
  • Predictive analytics and forecasting
  • Natural language processing solutions
  • Machine learning model development
  • AI strategy and consulting

CRM Solutions

Integrated CRM systems tailored to your business needs.

  • CRM implementation and customization
  • Sales pipeline optimization
  • Customer data management
  • Marketing automation integration
  • Multi-channel customer engagement