Burst – Interval Timer
Random beeps and fitness tests
Free · Designed for iPad. Not verified for macOS.
Burst is an interval timer and a field-test logbook. Free, no account, in 10 languages.
EVERY INTERVAL FORMAT
Work/rest intervals, pyramids, distance sessions, Tabata, HIIT, boxing rounds, circuits. Set durations on a wheel, name the exercises of each round, add a warm-up, and see the total time before you start.
RANDOM BEEPS
Random-cue mode drops unpredictable signals into each work phase, at three intensities. Train reaction: strike on the beep, sprint on the beep, change direction on the beep. A feature you will not find in a standard interval timer.
FIELD TESTS, WITH THE MATH
Léger 20 m shuttle run (beep test), 30-15 Intermittent Fitness Test, Gacon 45/15, Yo-Yo IR1 and IR2, Cooper and half-Cooper, 2 km, T-Test, repeated sprints, BOLT, FTP. Burst runs the exact protocol, then computes your aerobic speed and estimated VO₂max and places you on a benchmark by sex and age.
ONE PHONE FOR THE WHOLE TEAM
In team mode you enter up to 40 names before the test. During the run, tap the name of whoever stops: each athlete gets their own level and aerobic speed, and the ranking goes into the history. Built for PE classes, clubs and strength coaches.
YOUR SESSIONS WITHIN REACH
90 ready-made sessions, sorted by sport and by energy system (VO₂max, threshold, anaerobic, recovery), search, filters, and favorites to bring back your own intervals in one tap.
PROGRESS
The history keeps every session, every test result and how it felt. Your aerobic speed and training paces update with each test.
SIMPLE
One screen per task, digits you can read from three meters, clean sounds, a timer that keeps running with the screen locked. Works offline.
Burst is free and supported by ads. No account, no session data sent anywhere: everything stays on your phone.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A single banner, anchored above the tab bar, and fewer ads loaded for nothing. In a workout's settings, work and rest now carry their phase colour.
The developer, Sebastian Orlowski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sebastian Orlowski
- Size
- 42.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.2 or later.
- iPhone
Requires iOS 16.2 or later. - iPad
Requires iPadOS 16.2 or later. - Mac
Requires macOS 13.1 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- Copyright
- © 2026 Molven Apps