“Healthchecks.io currently has 652 paying customers, and the monthly recurring revenue is 14043 USD.”
Caune runs Healthchecks.io alone, part-time, on Hetzner boxes. He started it in 2015 because Dead Man’s Snitch and Cronitor were overpriced. He won’t raise prices, won’t tighten the free plan, and turns away enterprise deals that need purchase orders or custom contracts. No investors means nobody forcing an enterprise tier on him.