> ## Content Index
> Fetch the complete content index at: https://www.founderbounty.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# How to find a good niche. How Zach Yadegari built Cal AI. A case study.
- URL: https://www.founderbounty.com/how-to-find-a-good-niche-how-zach-yadegari-built-cal-ai-a-case-study/
- Published: 2025-11-05T14:16:36.000Z
- Updated: 2026-05-12T11:22:26.000Z
- Author: Vlad Kozul
- Tags: Stories

Recently having done a CNBC episode, Zach is an amazing entrepreneur. He is only 18 and has already built an app doing over $1M per month. Now most people are looking to understand just how he did it. Its very simple. He found a niche that no one was going after and exploited it.

The company has just been acquired.

Its something every business owner should be doing. While going to the gym there was no way to easily find how many calories food contained without going through the laborious process.

[Cal AI](https://www.calai.app/?ref=founderbounty.com) simply takes a pic of the food and using AI automatically tells you how many calories that food has. Its genius and simple and it works having been downloaded millions of times.

## He recently bought a Lamborghini and loves life!

## Sign up for FounderBounty

Founderbounty. Learn how to build a business with ideas and case studies from exited founders. Your daily dose of business and tech. Subscribe now.

Subscribe 

Email sent! Check your inbox to complete your signup. 

No spam. Unsubscribe anytime.