iOS case study · Health & Fitness

Gym Workout Assistant App

My role
Junior iOS Developer
Period
July 2019 – July 2021
Company
Yarsa Labs, Pokhara
Platform
iOS (iPhone)
Gym Workout Assistant iOS app screenshots with HealthKit

Overview

A workout app only helps if people keep opening it. That means clear exercise guidance, progress people can see, and plans that fit their routine.

As a Junior iOS Developer at Yarsa Labs, I built this gym workout assistant with customizable plans, progress tracking, animated exercise guides and HealthKit integration.

Created a fitness app with customizable workout plans, progress tracking, and Lottie animations. Integrated HealthKit for health data and built analytics to recommend tailored routines. Contributed to high user retention through an engaging, intuitive interface.

What I did

  • Building workout plan, tracking and analytics features
  • Integrating HealthKit for health data
  • Adding Lottie animations to the exercise experience
  • Improving the UI and integrating APIs and SDKs

Key features

  • Customizable workout plans
  • Progress tracking
  • Animated exercise guidance with Lottie
  • HealthKit integration for health data
  • Analytics that recommend tailored routines

Tech stack

Swift and UIKit
App code and interface
HealthKit
Reading and writing health and workout data
Lottie
Lightweight vector animations for exercises

Results

  • High user retention driven by personalized features and an engaging interface