Discover Boring Businesses that Quietly Rake in the Cash

Personal Diet and Health Tracker Generates $40,000 a Month


Cronometer is a nutrition tracker app born from a personal need that evolved into a successful venture.


The Team

Cronometer was started in 2005 by Aaron Davidson as a personal project, the app gradually gained traction, fueled by its user-friendly interface and comprehensive nutrient database.


Business Model & Revenue

Cronometer operates on a freemium model, offering a basic version with core features for free and a premium tier with advanced functionalities like meal planning and recipe analysis.

They make money from 3 channels:

  • Money earned from Adsense in the free version.
  • Money earned from people who subscribe to Gold and Professional editions.
  • Money earned from selling the mobile app.

Over time, Cronometer evolved from a hobby into a bona fide company, boasting $40,000 per month in revenue, a team of full-time employees, and a user base exceeding one million.



The primary distribution channels Cronometer are organic growth through word-of-mouth, influencer partnerships, and sponsorships. They rely less on traditional digital marketing methods like SEO and paid ads.

  1. Word-of-mouth: Organic growth through people recommending the product on various platforms like blogs, forums, Reddit, YouTube videos, etc.

  2. Influencer Partnerships and Sponsorships: Active marketing efforts involve collaborating with influencers in the personal health and dieting space. Cross-promotions with authoritative figures who are already fans of the product help attract users from their audiences.

  3. Limited SEO Presence: Although the business has poor SEO and doesn't invest much in it, the primary source of acquisition is through people talking about the product online rather than search engine optimization.

  4. Experimentation with Paid Ads: The business experimented with paid Google and Facebook ads but found it challenging to achieve a positive return on investment (ROI), so this is not a major channel for them.

Tech Stack

  • Backend: Python