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

Description and use

A 12‑year‑old developer built a 142 KB AI mentor app on a $150 phone, targeting 100 users in 30 days while keeping the code locked to focus on distribution.

Problem

Developing a lightweight AI code mentor that can run on low‑end Android devices with limited storage and spotty 3G connectivity.

Outcome

KODA remains a 142 KB, mobile‑first AI mentor that runs on a $150 phone; the developer has 23 users and aims for 100 in 30 days while keeping the code locked to focus on distribution.

Workflow

• Build KODA on a low‑end phone using native browser APIs and lean WebSockets
• Lock the codebase for 30 days to avoid feature creep
• Promote KODA through community channels and transparent building
• Encourage users on budget devices to try KODA and provide feedback
• Track user growth toward 100 users and newsletter subscriptions

Evidence

I recently launched KODA, a 142KB, mobile‑first AI code mentor with live voice chat and study rooms.

Source

Users: 23 (The Founding 23 🏆)

Source

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.

Source