Boost VO2 - Norwegian 4x4
Improve your endurance!
About
Improve your running performance and VO2 max with the scientifically proven Norwegian 4x4 interval training method. This app offers personalized plans, guided workouts with audio cues, and automatic phase transitions to help you achieve better aerobic fitness.
What's New in Boost VO2
1.3
September 3, 2025
Bug fixes
Developer apps
FAQ
What is the Norwegian 4x4 training method used in Boost VO2?
The Norwegian 4x4 method involves four minutes of high-intensity effort followed by three minutes of recovery, repeated four times. This protocol is scientifically researched for its effectiveness in significantly improving VO2 max and aerobic capacity.
Can I customize my training plans in Boost VO2?
Yes, Boost VO2 allows you to create personalized 4x4 training programs. You can choose from plans lasting 4-8 weeks with 1-4 workouts per week, and receive estimated VO2 max improvements based on your specific plan.
Does Boost VO2 offer guidance during workouts?
Boost VO2 provides a guided workout experience with audio coaching for clear interval timing and instructions. It also includes visual cues, haptic feedback, and automatic transitions between warm-up, intervals, recovery, and cool-down phases.
What devices is Boost VO2 available on?
Boost VO2 is currently supported on iPhone and iPod devices. The app is rated for ages 4 and up.
How often is Boost VO2 updated?
The latest version of Boost VO2 is 1.3, and it was last updated on September 3, 2025. Updates typically bring improvements and new features to enhance the user experience.
What is the user rating for Boost VO2?
Boost VO2 has a rating of 4.0 stars based on 1 review. This indicates a generally positive reception from its users.
Does Boost VO2 have ads?
No, Boost VO2 does not contain advertisements. The app is completely free to use without any ad interruptions.
Can I select a different voice coach in Boost VO2?
Yes, Boost VO2 offers voice coach selection, allowing you to choose a personalized voice for motivation during your workouts. This feature helps make the training experience more engaging.
