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Native Mobile Apps
March 20, 2025
5 months

Native iOS Fitness Tracker

Swift-based fitness app with HealthKit integration and Apple Watch companion

iOS Fitness Tracker App

Team Size

4 developers

Duration

5 months

App Store Rating

4.9/5 stars

Challenge

A fitness startup wanted to create a premium iOS fitness tracking application that would seamlessly integrate with Apple's ecosystem. They needed native performance, HealthKit integration, Apple Watch companion app, and advanced analytics to compete with established fitness apps in the App Store.

Solution

We developed a comprehensive native iOS fitness application using Swift:

  • Native Swift development for optimal performance
  • HealthKit integration for comprehensive health data
  • Apple Watch companion app with workout tracking
  • Core Data for local data persistence
  • CloudKit synchronization across devices
  • Custom workout plans with video demonstrations
  • Social features with friend challenges
  • Advanced analytics and progress visualization

Key Features

HealthKit Integration

Seamless sync with Apple Health for comprehensive fitness tracking

Apple Watch App

Standalone workout tracking with heart rate monitoring

Custom Workouts

Personalized workout plans with video guidance and progress tracking

Social Challenges

Friend competitions and community challenges for motivation

Apple Ecosystem Integration

iOS Features

  • • HealthKit data synchronization
  • • Siri Shortcuts integration
  • • Widget support (iOS 14+)
  • • Background app refresh

watchOS Features

  • • Independent workout tracking
  • • Heart rate zone monitoring
  • • Haptic feedback notifications
  • • Complication support

Results

App Store Ranking

Top 10

Health & Fitness category

User Rating

4.9/5

Average App Store rating

Daily Active Users

25K+

Daily active users

Retention Rate

78%

30-day user retention

Technology Stack

SwiftSwiftUIHealthKitWatchKitCore DataCloudKitAVFoundationCharts

Confidential Project

This case study represents a real project delivered for our B2B client. Specific technical details, client information, and proprietary methodologies have been generalized to maintain confidentiality while accurately representing our capabilities and project outcomes.