

they built a $10k/month app thanks to this strategy | Starter Story
Oct 9, 2025
Discover how Joseph and Timo turned their app, Satter AI, into a $10k/month success. They reveal their unique validation strategy, which enabled them to earn $500 before even writing code. Learn about their innovative use of a fake landing page and demo to attract customers. This episode is packed with actionable insights that highlight the importance of early validation in building a profitable business!
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Founders Met In A Co-Working Space
- Joseph and Timo met in a co-working space and partnered to build Satter AI, reaching $10k MRR.
- They experienced a year of building with no traction before changing strategy.
Get Paid Before Building
- Ask for payment before you build to validate demand and avoid wasted effort.
- Use refundable deposits to secure early commitments and signal seriousness.
Early Payments Reveal Real Demand
- Validating demand early rewires how you build startups and prevents years wasted on dead products.
- Small upfront payments reveal real buyer intent better than surveys or prototypes.