Amar — Developer & Creative

Overview

The Problem

FitLife needed a cross-platform mobile app that felt native on both iOS and Android, with offline-first capabilities for users who train without internet access.

Built with React Native, the app features an offline-first architecture using local SQLite synced to Firebase when connectivity is restored. Custom D3.js charts render progress beautifully on mobile.

Features

What I Built

🏋️

Workout Tracking

500+ exercises with animated form guides, custom routines, and rest timers.

🥗

Nutrition Logging

Barcode scanner for food, macro tracking, and meal planning with calorie goals.

📈

Progress Charts

Beautiful D3-powered charts showing strength gains, body measurements, and streaks.

👥

Social Features

Friend leaderboards, workout sharing, and challenge system for accountability.

Stack

Tech Stack

The technologies chosen for performance, scalability, and developer experience.

React Native

Mobile

Firebase

Backend

Redux

State

SQLite

Offline DB

D3.js

Charts

Expo

Tooling

Results

The Outcome

Launched on App Store and Play Store. Hit 10k downloads in the first month with 4.8★ rating.

10k+

Downloads

First month after launch across iOS and Android.

4.8★

App Rating

Consistently maintained across both app stores.

68%

Retention

Day-30 retention, well above the industry average of 25%.

FitnessTracker App

The Problem

What I Built

Tech Stack

The Outcome