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Interval Pro

Interval Pro is a premium 3-phase interval timer designed for athletes, coaches, and fitness enthusiasts. It enables structured HIIT and Tabata-style workouts with visual and audio cues for maximum performance and focus. The timer includes: Prepare Phase – 5 seconds to get ready. Work Phase – custom duration. Rest Phase – custom duration. Rounds Selector – define how many intervals to run. The circular progress ring visually displays the remaining time for each interval, changing color depending on the phase: Red for Work Green for Rest Yellow for Prepare The app provides sound alerts using Tone.js: A tone when the phase starts or changes. A different tone when the workout finishes. Other features: 🌓 Dark/Light theme toggle with saved preference. 🧮 Auto-save settings for duration and rounds in localStorage. ⏸ Pause and Resume functionality mid-workout. 🔁 Reset function for a fresh start at any time. 📱 Mobile-responsive neumorphic design. No backend or API keys are required — everything runs 100% client-side for instant response and offline functionality.

Install Interval Pro at its install page.

Category: Fitness