# Norwegian 4x4 Protocol vs Stadium Chasers

The clearest difference is in-app purchases: Stadium Chasers at none against Norwegian 4x4 Protocol's 2. Stadium Chasers also leads on update cadence (every 4 days vs fortnightly) and iOS requirement (14.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Norwegian 4x4 Protocol sells 2 in-app purchases, starting at $8.99 per 7 days. Stadium Chasers asks for nothing beyond the download.

Norwegian 4x4 Protocol ships an update fortnightly, Stadium Chasers every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Norwegian 4x4 Protocol | Stadium Chasers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (66 ratings)](https://appshunter.io/ios/app/norwegian-4x4-protocol-boreas/id6751464534/reviews)** | — |
| Number of ratings | **66** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 9 MB | 23 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Havard Tryman](https://appshunter.io/developer/1662964293) | [Stadium Chasers LLC](https://appshunter.io/developer/6800499721) |

## What reviewers say

### Norwegian 4x4 Protocol

[App page](https://appshunter.io/ios/app/norwegian-4x4-protocol-boreas/id6751464534)

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.

**Highlights:** Norwegian 4x4 workouts, Voice guidance for intervals, Apple Watch heart rate tracking, Calorie tracking, Save workouts to Health app, No sign-in required

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $8.99 | per 7 days |
| Pro | $24.99 | per year |


### Stadium Chasers

[App page](https://appshunter.io/ios/app/stadium-chasers/id6800499719)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Norwegian 4x4 Protocol free?

Norwegian 4x4 Protocol is free to download, with in-app purchases available.

### Is Stadium Chasers free?

Stadium Chasers is free to download, with no in-app purchases.

### Do Norwegian 4x4 Protocol or Stadium Chasers have ads?

Neither Norwegian 4x4 Protocol nor Stadium Chasers shows ads.

### Which is updated more often, Norwegian 4x4 Protocol or Stadium Chasers?

Norwegian 4x4 Protocol ships an update fortnightly, and Stadium Chasers every 4 days. Most recently, Norwegian 4x4 Protocol was updated on October 30, 2026 and Stadium Chasers on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*