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I’m 12. I built a 142KB AI app on a $150 phone. My goal: 100 users in 30 days.

I’m 12. I built a 142KB AI app on a $150 phone. My goal: 100 users in 30 days.

1 day ago

Hey DEV Community! šŸ‘‹

I’m Harun, a 12-year-old developer building entirely on a $150 Android phone.

I recently launched KODA, a 142KB, mobile-first AI code mentor with live voice chat and study rooms. No bloat, no heavy frameworks, just pure constraint-driven engineering designed for spotty 3G connections and budget devices.

Current Status:

  • Users: 23 (The Founding 23 šŸ†)
  • Goal by Nov 11: 100 Users
  • Newsletter Goal: 50 Subs for "Off Radar"
  • Codebase: šŸ”’ Locked for a month. I am going 100% pure distribution.

Why I locked the code

Most indie developers fall into the trap of constantly tweaking features. I realized I was using "coding" as a way to avoid the hard part of building a business: distribution.

So, I made a rule. No new features for 30 days. My only job is to get KODA in front of developers who actually need it.

I’m not using paid ads. I’m relying on community, transparent building, and ruthless optimization.

The "Constraint-Driven" Philosophy

Building on a $150 phone with limited storage and spotty internet taught me something crucial: Bloat is the enemy.

If an app takes 10 seconds to load on a 3G connection, the user is gone. KODA is 142KB. It uses lean WebSockets for study rooms and native browser APIs whenever possible. It’s built for the developers who are often ignored by Silicon Valley: those coding on budget devices in developing nations, or just anyone who hates bloated, 50MB web apps.

How you can help me hit 100

If you code on a budget device, or know someone who does, I would be incredibly grateful if you tried it out and roasted my UX. Every single user gets me closer to the goal.

šŸ‘‰ Try KODA here: https://koda-aicodementor.netlify.app/

Off Radar šŸ“”

I’m also building a tiny, constraint-driven newsletter called Off Radar for devs building powerful tools on a budget. If you want to see how a 12-year-old navigates the indie hacker world, I’d be honored to have you:

šŸ‘‰ Subscribe to Off Radar: https://offradar.netlify.app/

Let’s get to 100! 🐯

Chat with me