Best Norwegian 4X4 Heart Rate Apps

243+ iOS apps curated and reviewed

4.0 avg rating
19 free apps
Updated September 2026

The best norwegian 4x4 heart rate apps on iPhone average 4.0★ across 243+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Norwegian 4X4 Heart Rate Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Norwegian 4x4 Heart RateNorwegian 4x4 Heart RateFree5.0★ (1)NoNoJun 2026
2Norwegian 4x4 Protocol: BoreasNorwegian 4x4 Protocol: BoreasFree4.7★ (56)NoYesSep 2026
3Norwegian 4x4 workoutNorwegian 4x4 workoutFreeNoYesSep 2026
4Norwegian 4x4 ProtocolNorwegian 4x4 Protocol$5.99 was $6.994.3★ (50)NoNoSep 2026
5Norwegian 4x4 CoachNorwegian 4x4 CoachFreeNoNoAug 2026
6VO2 Flow: Norwegian 4x4 TimerVO2 Flow: Norwegian 4x4 TimerFreeYesYesJul 2026
7Ramp4x4: VO2 Max TrainerRamp4x4: VO2 Max TrainerFreeNoYesSep 2026
8Heart Rate Monitor: HR AppHeart Rate Monitor: HR AppFree4.2★ (385)NoYesSep 2026

Top Picks for Norwegian 4X4 Heart Rate

Norwegian 4x4 Protocol: Boreas#2

Norwegian 4x4 Protocol: Boreas by Havard Tryman

Interval training for VO2 max
Strong Contender
⚽ Sports
4.7(56 ratings)
FreeIn-App Purchases
Norwegian 4x4 Protocol: Boreas screenshot 1
Norwegian 4x4 Protocol: Boreas screenshot 2
Norwegian 4x4 Protocol: Boreas screenshot 3
Norwegian 4x4 Protocol: Boreas screenshot 4

This app guides you through the Norwegian 4x4 interval training protocol to improve your VO2 max and cardiovascular fitness. It offers customizable warm-up and cooldown durations, voice guidance for intervals, and integrates with Apple Watch for heart rate and calorie tracking.

More Norwegian 4X4 Heart Rate apps to explore

FAQ about Norwegian 4X4 Heart Rate

What are the best norwegian 4x4 heart rate apps for iPhone?
Norwegian 4x4 Heart Rate tops our norwegian 4x4 heart rate apps ranking as of September 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Yes — 19 of the top norwegian 4x4 heart rate apps we rank are free to download, including Norwegian 4x4 Heart Rate and Norwegian 4x4 Protocol: Boreas.
Norwegian 4x4 Heart Rate has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 243+ norwegian 4x4 heart rate apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Norwegian 4x4 Heart Rate is a free app designed to guide users through the Helgerud VO2max interval protocol. It uses a connected Bluetooth heart rate monitor to provide real-time feedback and audio cues.
The app supports any Bluetooth heart rate monitor that exposes the standard heart-rate service. This includes popular brands like Whoop, Polar H10, Wahoo TICKR, and Garmin HRM.