Founder of a $160K/month fitness app reveals his entire tech stack: @starterstory

Uploaded September 2026 | Updated September 2026, 2 hours ago

Founder of a $160K/month fitness app reveals his entire tech stack: Claude with MCPs, PostHog, Superwall, Whisperflow, Notion, and Slack.

Mauro is 23. He launched Symmetry a year ago and it’s now doing $160K/month with $3M in revenue across iOS and Android, dominating the Spanish gym app market.

Bros TikTok slideshow strategy is his top download driver

Bro cold-DMed thousands of influencers with one killer insight to grow his app 😱

$30K MRR founder locked in creators before launch and hit a 300 person waitlist

Bro recruited his friends to build his app so they wouldnt have to work dumb jobs.

To the outside world, its really boring... But it makes $60K a month 😳

How her manifestation app hit $360K MRR in just 2 months...

Bros first apps all flopped, until he pivoted to AI apps 🥶

I Built a $10K/Month SaaS Using Other Peoples Customers

I Make $60K/Month From the Most Boring SaaS on the Internet

$30M founder reveals the ideas he’d bet on again if he had to start over

My website makes $35K/month (built in 3 hours)