4,662

FitCentive

Stake money on fitness challenges

FitCentive: Stake money on fitness challenges, built by Karan Kumar
Role
Designed, built and shipped the iOS app
Platforms
iOS
Status
Live

Overview

FitCentive turns fitness goals into challenges with real stakes. Users put money on a five-day challenge, hit a daily target, and earn rewards for finishing, with global competitions for people who want more pressure.

I designed, built and shipped the app to the App Store for the client, from the React Native app to the Node.js and GraphQL backend that tracks challenges and rewards.

What I built

  • Shipped the React Native iOS app to the App Store
  • Built the five-day challenge flow with daily targets and progress tracking
  • Built rewards and global competitions to keep users coming back
  • Built the GraphQL API on Node.js with Prisma, in TypeScript

Tech stack

  • React Native
  • Node.js
  • GraphQL
  • Prisma
  • TypeScript

Need something like FitCentive built? I take on full-time remote roles and freelance projects.

Get in touch
“The way to get started is to quit talking and begin doing.”
Walt Disney

© 2026. Built with hands.