Brawler: an AI boxing coach app at $24,100 a month
Brawler, an AI boxing coach app, earns $24,100 a month in verified revenue after hitting $60,000 in a 30-day window within months of launch. The app sells AI coaching as a mobile subscription — a reminder that a narrow, physical skill with clear feedback loops can support a real AI business. Revenue verified via TrustMRR; the 50% margin is founder-reported.