Welcome to the official documentation page for IntervalTimer Duo, a versatile interval timer application. Perfect for workouts, study sessions, cooking, and any activity that requires timed intervals.
Purchase on either the App Store (iOS) or Mac App Store - your purchase works on both platforms. 7-day free trial, then a one-time purchase (no subscription).
Learn how to use IntervalTimer Duo effectively with our comprehensive guide.
View User Manual →