Mobile App

Fitness & Workout App

Workout plans, tracking, timers and progress insights.

STACK: React Native · Firebase · HealthKitREGION: WorldwideYEAR: 2025

Overview

Workout plans, tracking, timers and progress insights. I built a React Native app with guided workouts, logging, rest timers, progress charts and health-data sync. Built with React Native, Firebase, HealthKit, this mobile app project was delivered for a client in Worldwide and designed for reliability, a clean user experience and long-term maintainability — so it keeps delivering value well after launch.

The challenge

A trainer wanted to deliver programs and track clients in an app.

What I built

I built a React Native app with guided workouts, logging, rest timers, progress charts and health-data sync.

Key features

  • Cross-platform iOS and Android from one codebase
  • Push notifications
  • Offline support and sync
  • Secure API and data handling
  • In-app payments where needed
  • Clean, native-feeling UX

The results

  • Guided workouts and tracking
  • Clear progress insights
  • Health-data integration
React NativeFirebaseHealthKit

This is an example of my mobile app development work. Need something similar? Start a project →

How we work

My delivery process

01

Discovery

We start by understanding the goal, the users and the constraints — no jargon, just a clear picture of what success looks like.

02

Plan & design

A clear scope, architecture and milestone plan, so you know exactly what's being built and when.

03

Build & iterate

Development in reviewable increments with regular updates, so you see working software early and often.

04

Launch & support

Testing, deployment and ongoing support, so it keeps running smoothly long after go-live.

FAQ

Fitness & Workout App — FAQ

Can you build a fitness & workout app for my business?

Yes. I build custom mobile app solutions like this fitness & workout app, using React Native, Firebase, HealthKit and tailored to your exact workflow, timeline and budget. Send me your requirements and I'll reply with a clear plan and quote.

How much does a project like this cost?

It depends on scope. After a short discovery call I provide a clear, fixed quote and milestone plan before any work begins — no surprises. Smaller builds start low; larger platforms are quoted per milestone.

How long does it take to build?

A focused MVP can take a few weeks, while a larger mobile app build runs in milestones over a couple of months. You'll see working software early and often, not just at the end.

What technology do you use, and will I own it?

This project uses React Native, Firebase, HealthKit. I pick the right stack for each project, and you own 100% of the code and infrastructure — delivered in your own repositories and accounts.

Get in touch

Want something like this built?

Tell me about your project and I'll get back to you within 24 hours. Prefer to chat? Message me on WhatsApp.