Norwegian 4x4 Protocol: Boreas
Get started with Norwegian 4x4 interval training.
Norwegian 4x4 Protocol: Boreas makes it easy to get started with the Norwegian 4x4 protocol. Just select warm-up and cooldown duration, and the app handles the rest. You can connect an Apple Watch to track your heart rate and calories. The app supports voice guidance to let you know when the interval is about to end and when the next interval starts.
Screenshots
Features
Norwegian 4x4 Workouts
Get started with the Norwegian 4x4 protocol.
Voice Guidance
Know when the next interval starts while the app is in the background with voice guidance.
View Heart Rate Zone
Get current heart rate, heart rate zone and calories from your Apple Watch.
Integrates with the Health App
Save your workouts to the Health app.
No Sign-In Is Required
Data is saved to your iCloud and synchronized across your devices.
More Apps
Explore more apps by the same developer.
HRV Tracker Pro
Watch, Camera, Stress Analysis
Count Steps - Step Counter
Pedometer & Walking Tracker
Baby Age Tracker & Milestones
Child, Newborn, Infant, Log
Book of Common Prayer - BCP
Daily Office & Lectionary
Pitch Changer - Music & Video
Transpose Audio, Adjust Key
Kalimba Tuner
Guitar, Ukulele, Mandolin, Etc