The tech stack behind a $25K/month timer app?
A developer behind a $25K/month timer app shares the lean tech stack powering the business, including Sublime Text, Airtable, and Postmark. The business runs on remarkably low infrastructure costs, with total operating expenses under $2,000/month. This results in profit margins between 80-90%.
Summary
In this short clip, the developer of a timer app generating $25K/month walks through the tools and technologies used to both build the product and run the business.
On the development side, the developer uses older, traditional tools like Sublime Text and Sublime Merge rather than AI-integrated IDEs like Cursor or GitHub Copilot. Interestingly, they find that copying and pasting code into cloud-based AI tools (like ChatGPT) and generating code there is actually faster and more efficient for their workflow than using an integrated AI coding environment.
For business operations, two tools stand out. Airtable is used as a CRM — described as a powerful Excel-like spreadsheet with all customer data, enhanced by automation capabilities built on top of it. Postmark is used as the email sending platform, and the developer specifically praises it as being well-suited for solopreneurs and small SaaS businesses.
The business economics are notably efficient. Server and infrastructure costs come in at just $280/month, while tools and services (including Airtable and Postmark) total $250/month. Paid advertising accounts for $1,400/month. With these lean operating costs, the business achieves a profit margin of 80-90% on its $25K/month in revenue.
Key Insights
- The developer argues that copy-pasting code into cloud-based AI tools is literally faster than using integrated AI IDEs like Cursor or Copilot for their workflow.
- The developer uses Airtable as a CRM, highlighting its automation capabilities layered on top of a spreadsheet-style customer database as a key reason for choosing it.
- The developer specifically recommends Postmark as an email platform made for solopreneurs, distinguishing it from general-purpose email tools.
- The entire SaaS business runs on only $280/month in server and infrastructure costs, reflecting an extremely lean technical operation.
- The developer states the business achieves 80-90% profit margins, with total monthly operating costs under $2,000 against $25K/month in revenue.
Topics
Full transcript available for MurmurCast members
Sign Up to Access