About

Intervalla is a precision interval timer for Tabata, AMRAP, and custom workouts with real-time Bluetooth heart rate monitoring.

Most interval timer apps try to do too much — calorie tracking, social feeds, subscription paywalls. We wanted something different: a timer that's fast, focused, and stays out of your way. Open the app, pick your workout, and go.

Every feature in Intervalla exists because it matters during a workout. The circular progress ring so you can read it mid-burpee. Real-time heart rate so you know when to push harder or ease off. Presets so your favorite workouts are one tap away. Nothing else.

Built by Ljosning in Norway. Available as a web app, on iOS, and coming soon to Android. Free, no account required.