245+ iOS apps curated and reviewed
The best norwegian 4x4 heart rate apps on iPhone average 4.1★ across 245+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | No | No | Jun 2026 |
| 2 |  | Free | 4.7★ (54) | No | Yes | Aug 2026 |
| 3 |  | Free | — | No | Yes | Aug 2026 |
| 4 |  | $5.99 was $6.99 | 4.4★ (49) | No | No | Jun 2026 |
| 5 |  | Free | — | No | No | Aug 2026 |
| 6 |  | Free | 4.7★ (15) | No | Yes | Aug 2026 |
| 7 |  | Free | — | Yes | Yes | Jul 2026 |
| 8 |  | Free | — | No | Yes | Aug 2026 |
This app guides you through the Norwegian 4x4 VO2max interval training protocol using your Bluetooth heart rate monitor. It provides real-time audio cues to keep you in your target heart rate zones during work and rest intervals.
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.
This app guides you through the effective Norwegian 4x4 interval training method to boost cardiovascular performance and endurance. It features a precision timer, heart rate zone tracking, and progress monitoring for scientifically proven results.
This app offers a science-backed cardio exercise program designed to improve health and prevent lifestyle diseases. It focuses on efficient workouts, measuring VO2 max with high accuracy, and integrating with popular fitness trackers. A premium subscription unlocks full features.
Transform your device into a heart rate monitor using its camera. Measure your pulse in seconds and track your progress over time with detailed graphs. Understand your resting, workout, and maximum heart rates for a healthier lifestyle.
Track your heart rate using your phone's camera. Get readings in seconds, view historical data, and access guided meditations and health articles. Integrates with Apple Health and offers a home screen widget for convenience.
Measure your pulse by simply looking at your phone. This app uses advanced technology to detect subtle facial color changes, providing a quick and easy way to monitor your heart rate. Readings can be conveniently saved to Apple Health.
This app helps you track your weekly workout time spent in the Zone 2 heart rate range. It provides detailed tracking, connectivity with various heart rate monitors and Strava, and real-time feedback on your progress towards your fitness goals.
Easily measure your heart rate using your phone's camera. Track your health trends with detailed charts and activity logs. Review your measurement history to understand your cardiovascular well-being.
Measure your heart rate using your iPhone's camera and flash. Track unlimited measurements, save history with comments, and integrate with Apple Health. Ideal for fitness enthusiasts to monitor pre/post-workout and resting heart rates.
Measure your heart rate accurately using your phone's camera and flash. Track your results daily or weekly with real-time graphs. This app provides a simple way to monitor your pulse.
Monitor your heart rate using your smartphone's camera. The app detects subtle color changes in your fingertip to calculate your pulse, providing real-time graphs and the ability to save and share results. It's designed for general fitness and wellness tracking.
Transform your phone into a heart rate monitor. Simply place your finger on the flash and camera to get accurate pulse readings. Track your history, view detailed statistics, and integrate with your health app.
Track your pulse and gain insights into your heart health using your smartphone. Monitor heart rate zones, trends, and cardiovascular fitness with easy-to-read statistics and wellness articles. This app is for personal wellness tracking and not for medical use.
Visualize your heart rate data from Apple HealthKit with detailed daily and weekly charts. Track your average heart rate and see how often you reach your heart rate training zones.