Portfolio concept / self-initiated project

FitFlow

Gym Management SaaS

Next.jsReact NativeNestJSPostgreSQLStripeAWSRedis

📋 Project Overview

⏱️
Timeline
6–8 weeks
🧠
Type
Self-initiated concept
⚙️
Tech Stack
7 technologies

🔴 The Problem

Small to mid-size gyms were using spreadsheets or outdated software to manage memberships, attendance, and billing — leading to revenue leakage.

The Solution

A modern SaaS platform for gym management — with biometric check-in, automated billing, trainer scheduling, and member-facing mobile app.

🚀 Key Features

Biometric & QR check-in system
Automated subscription billing
Class & trainer scheduling
Member mobile app (iOS & Android)
Revenue analytics dashboard
Multi-branch management

🏗️ Tech Architecture

Frontend

Next.jsReact Native

Backend

NestJS

Database

PostgreSQLRedis

Integration

Stripe

Cloud

AWS

💼 Business Value

Reduces admin time by 60%, eliminates billing errors, and provides data-driven insights that help gym owners increase member retention by 35%.

SEO & Performance

🔍

Server-Side Rendering

Built with Next.js SSR for maximum SEO. Every page is fully rendered on the server so Google indexes all content immediately.

📊

Core Web Vitals

Optimised for LCP, FID, and CLS. Images are lazy-loaded, fonts are preloaded, and JavaScript bundles are tree-shaken.

🏷️

Structured Data

JSON-LD schema markup included for rich snippets. OpenGraph and Twitter Card metadata for social sharing.

🔮What I'd Build Next

v2 feature ideas — where this product could go next

1

AI personal trainer that generates custom workout plans based on attendance data

2

Wearable integration (Apple Watch, Garmin) for real-time class heart rate tracking

3

In-app community feed for member challenges and progress sharing