This app guides you through the Norwegian 4x4 interval workout using your real heart rate. It provides spoken cues and target heart rate ranges to ensure you train at the correct intensity without needing to constantly check your screen.




245+ iOS apps & games curated and reviewed
From beginner-friendly picks to power-user tools, our norwegian 4x4 coach list covers 245+ iPhone apps and games updated through October 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (1) | No | No | Oct 2026 | ||
| 2 | Free | 4.6★ (66) | No | Yes | Oct 2026 | ||
| 3 | Free | — | No | Yes | Oct 2026 | ||
| 4 | Free | 5.0★ (2) | No | Yes | Oct 2026 | ||
| 5 | Free | — | No | Yes | Oct 2026 | ||
| 6 | Free | 4.2★ (237) | No | No | Nov 2026 | ||
| 7 | Free | 5.0★ (2) | No | No | May 2026 | ||
| 8 | Free | 4.8★ (19K) | No | No | Nov 2026 |




This app guides you through the Norwegian 4x4 interval workout using your real heart rate. It provides spoken cues and target heart rate ranges to ensure you train at the correct intensity without needing to constantly check your screen.




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.





