FitnessLink

mobile app that tracks fitness activities automatically. Counts steps, logs gym exercises, and lets you compete with friends on daily and weekly scores. Track calories, sleep, weight, shopping lists, and recipes.

Fitness TrackerExpo • React Native • Cloudflare
FitnessLink mobile fitness tracking app with step counting, competitions, and social features

What We Built & Why

FitnessLink is a mobile app that tracks fitness activities and lets users compete with friends. It automatically counts steps, logs gym exercises, tracks calories and sleep, and includes shopping lists and recipes. Built with React Native for iOS and Android.

Most fitness apps are boring to use alone. People stick with fitness routines longer when they have friends to compete with and share progress. We added competition and social features to make fitness tracking more engaging.

Key Features

Automatic step counting
Friend challenges and leaderboards
Weight tracking and goals
Walking and running competitions
Gym exercise and repetition logging
Calorie tracking with food breakdown
Shopping lists and recipe management
Team challenges and group goals
Daily and weekly score competitions
Sleep monitoring and quality scores
Share fitness achievements
Works on iOS and Android

The Problem

Most fitness applications struggle with extremely high user abandonment rates, often losing over 80% of users within the first month because they feel like solitary chores and lack the social engagement necessary for long-term adherence to health goals and fitness routines

Our Approach

Implemented a comprehensive social engagement ecosystem with friend challenges, weekly tournaments, achievement badges, streak tracking, and community features that transforms solitary fitness tracking into an exciting competitive experience with built-in accountability and motivation

Development Challenges & Solutions

Step Tracking Accuracy

Challenge

Most fitness apps lose users quickly because they feel boring and lonely

Solution

Added friend challenges, tournaments, and achievements to make fitness tracking fun and social

Inclusive Competition Design

Challenge

Making step counting work accurately on different phone types

Solution

Used phone sensors with smart algorithms for reliable step counting

Real-Time Synchronization

Challenge

Creating competitions that work for both beginners and advanced users

Solution

Created competitions based on personal progress rather than just winning

Privacy & Social Balance

Challenge

Updating scores between friends in real-time

Solution

Built instant score updates using Firebase

Cross-Generational Usability

Challenge

Protecting user privacy while enabling social features

Solution

Simple privacy settings that let users control what they share

Challenge 6

Challenge

Making the app simple enough for all age groups

Solution

Designed a clean interface focused on daily quick use

FitnessLink mobile fitness tracking app with step counting, competitions, and social features