Interrun iOS
Interrun is a powerful mobile app designed for High-Intensity Interval Training.
A Simple HIIT Timer for Training Didn’t Exist
Challenge
Interrun is a Greenfield startup born out of necessity. While many HIIT timers exist, none are designed specifically for those who need an intuitive, distraction-free experience. We envisioned an app that embodies the "Form Follows Function" principle—where every design choice directly enhances the workout. Our goal was to create a HIIT training timer that is clean, purpose-driven, and effortless to use.
A Minimalist, High-Impact iOS App
Solution
For the MVP phase, we focused on a simple, useful, and highly usable iOS phone app. The design prioritizes clarity and responsiveness. The app provides instant feedback through vibrations and glowing indicators when it's time to switch intervals. A clear visual system helps users easily track which HIIT phase they are in. While the MVP focuses on core functionality, we have plans for an Apple Watch version, with multiple UI themes in future updates.
A Seamless HIIT Experience
Results
Interrun is currently in its final development stages and will soon be available for download. The app is set to provide a seamless HIIT experience — allowing users to focus on their training without unnecessary distractions. Stay tuned for its official release!
Tasks
Conduct primary and secondary research
Define information architecture
Design with a mobile-first approach
Create and maintain the design system
Design for iOS
Build interactive prototypes
Streamline developer handoff and documentation
Facilitate effective communication
Tools
AI (ChatGPT)
Figma for UX and UI
Figma for prototypes
Figma for flows
Keywords
Design System
Figma
AI (ChatGPT)
iOS
Human Interface Guidelines
Mobile-First Approach
MVP
Native