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21-Year-Old Med Student’s App = $27,000 Per Month

Jason Chan
  • Jason Chan

  • Founder of memo.cards
  • $27,000 monthly revenue

Check out memo.cards 👈

It’s a flashcard app to help students study.

The founder is Jason Chan, self-described on his website

21y/o. Med student by day, building AI SaaS startups by night.

He also lists the revenue of memo.cards there as $27,000 per month 🤑

700k visits to the site last month (source) so that sounds about right.

Best I can tell, Jason initially built the app to help himself study for medical school.

There were a lot of flashcard apps out there already, but he focused on a target market he knew well and used AI to simplify the card creation process 🤖

Could you do something similar with other general-use productivity apps?

💡 Quick ideas to get your wheels turning…

  • A task manager for lawyers
  • A note-taking app for scientists
  • A habit tracker for artists

The latter wouldn’t even need to be an app, could be a simple PDF template that you sell on Etsy (like Debbie).

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Updated: March 6, 2025

Business Ideas Database

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