AI Mobile AppsSource date: October 11, 2026Last reviewed October 30, 2026

A former Microsoft engineer built an AI money-coach app alone; it has made more than $6,000

He left a $200,000+ job, builds with Claude Code and Codex, and pays himself no salary.

Subject: Junead Khan (Treasury)Consumer AI app with paying customers

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Case Overview & Background

Junead Khan, 25, joined Microsoft in 2023 and earned more than $200,000 in 2024. He built Treasury, an AI money coach, at night and on weekends, then left to work on it full time without a cofounder or venture funding. It has paying customers and more than $6,000 in revenue.

How AI Is Used

Treasury is an AI money coach. He uses AI coding tools such as Claude Code and Codex to build it alone.

Step-by-Step Process

Step 01Build on the side

He built nights and weekends for about two years.

Step 02Go full time

He left Microsoft after not getting into an accelerator.

Step 03Grow with short-form video

He markets on TikTok and Instagram.

Customer Acquisition & Distribution

TikTok and Instagram content.

Limitations, Risks & Failure Modes

What may not apply to you, and what could go wrong:

  • Very early revenue relative to the salary given up
  • He is living off savings
  • Figure is self-reported

Key Takeaways

  • AI coding tools let one person ship a consumer app
  • Early revenue can be small for a long time

Sources

News PublicationOctober 11, 2026

Business Insider: Former Microsoft engineer left $200K job to build AI startup solo

Note: States Treasury 'has generated more than $6,000 in revenue.'

Open Source
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Case ID: cs-khan-treasury
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