Took over a stalled consumer fitness app, started from scratch, and got it on the App Store.
Solo founder, competitive bodybuilder. A previous developer had left him with a build that didn’t model what serious lifters actually track. I started over from scratch in React Native with deep product understanding of the bodybuilding scene, and shipped fast.
The problem
The earlier build was broken in the places that mattered. Generic fitness apps collapse the nuance bodybuilders care about. "Incline DB press, 30°, neutral grip" is not the same exercise as a flat barbell bench. Serious lifters track them as distinct. On top of that, bodybuilding is social: lifters want to share, get feedback, meet others in the scene.
The approach
Started over from scratch in React Native. Designed a custom exercise matching system covering 180+ exercises across grip, stance, position, unilateral vs. bilateral, and cable vs. free weight, so every logged set is a distinct, analyzable variant. Built the social layer around real community behavior. Handed off with the patterns, context, and momentum for Jamie to take it across the finish line himself.
Outcomes
- →Stalled product restarted from scratch and shipped
- →Custom exercise matching across 180+ variants
- →Social layer designed around real bodybuilder behavior
- →Founder launched to the App Store himself, 5.0 ★ rating
“Cristian did an incredible job. Very quick to make changes, very knowledgeable, and always asked questions to ensure he was building with my vision in mind.”
Start a conversation
Tell me what you’re building.
If it’s a fit, you’ll hear back from me personally within a day or two with next steps. No sales pitch.
- + Reply within 1–2 business days
- + Usually available within 1–2 weeks
- + Fixed-scope engagements, no retainer traps