# CGX vs Norwegian 4x4 Protocol

The clearest difference is price: CGX at Free against Norwegian 4x4 Protocol's $5.99. CGX also leads on review sentiment (55% vs 25%) and ratings volume (643 vs 55). Norwegian 4x4 Protocol's advantage is in-app purchases (none vs 2). On rating, ads and device support there is nothing between them.

CGX is free to download; Norwegian 4x4 Protocol costs $5.99 up front. CGX sells 2 in-app purchases, starting at $12.99 per month. Norwegian 4x4 Protocol asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for CGX against 4.3 for Norwegian 4x4 Protocol. That said, the two scores are not equally well evidenced: CGX has 643 ratings behind it against 55, so its average is the more settled of the two. Written reviews are what separate them: 55% of CGX's written reviews are positive against 25% of Norwegian 4x4 Protocol's.

CGX ships an update every 8 days, Norwegian 4x4 Protocol every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | CGX | Norwegian 4x4 Protocol |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [4.2 (643 ratings)](https://appshunter.io/ios/app/cgx/id1624488454/reviews) | **[4.3 (55 ratings)](https://appshunter.io/ios/app/norwegian-4x4-protocol/id6499464775/reviews)** |
| Number of ratings | **643** | 55 |
| Positive reviews | **54.5% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | **Freemium** | Paid |
| Best chart rank | **#116** | — |
| Size | 67 MB | 5 MB |
| Requires iOS | **15.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CGX Ltd](https://appshunter.io/developer/1624488606) | [Nikita Yampolski](https://appshunter.io/developer/1441915166) |

## What reviewers say

### CGX

[App page](https://appshunter.io/ios/app/cgx/id1624488454)

**Currently charting:** #116 Top Grossing · Health & Fitness (US App Store)

This premium strength and fitness app offers structured, progressive training programs for all levels. Access hundreds of on-demand workouts, instructional videos, and progress tracking. It also provides meal ideas and expert articles to support your fitness journey.

**Highlights:** Exclusive workout programs, On-demand strength and cardio, Coached training with form focus, Instructional videos, Progress tracking, Meal ideas, Offline training

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| Annually | $99.99 | per year |

**What reviewers like**

- 🚀 Great workouts
- 💡 Variety of programs
- 👍 Helpful form videos
- 👍 Informative articles
- 👍 Ability to use own music

**What reviewers complain about**

- 🐛 Buggy app performance
- 🐛 Casting/streaming issues
- 🐛 Calendar/scheduling problems
- 🐛 Login/account issues
- 🐛 Lack of progress tracking

**Reported bugs**

- App crashes during workouts
- Workouts not recording as completed
- Calendar not syncing properly
- Login issues with existing accounts
- Airplay/casting not working consistently

**Requested features**

- Ability to mark/track completed workouts
- Option to remove entire programs from calendar
- Customizable rest day scheduling
- Integration with fitness trackers
- Web/desktop version of the app


### Norwegian 4x4 Protocol

[App page](https://appshunter.io/ios/app/norwegian-4x4-protocol/id6499464775)

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.

**Highlights:** Precision 4min work / 3min rest cycles, Heart rate zone tracking (90-95% max HR), VO2 Max improvement tracking, Multiple HIIT workout protocols, Progress monitoring, Universal cardio training support, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is CGX free?

CGX is free to download, with in-app purchases available.

### Is Norwegian 4x4 Protocol free?

Norwegian 4x4 Protocol costs $5.99, with no in-app purchases.

### Which has better reviews, CGX or Norwegian 4x4 Protocol?

Norwegian 4x4 Protocol is rated higher. CGX averages 4.2 out of 5 from 643 ratings, while Norwegian 4x4 Protocol averages 4.3 from 55 ratings.

### Do CGX or Norwegian 4x4 Protocol have ads?

Neither CGX nor Norwegian 4x4 Protocol shows ads.

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

CGX ships an update every 8 days, and Norwegian 4x4 Protocol every 3 weeks. Most recently, CGX was updated on October 25, 2026 and Norwegian 4x4 Protocol on October 25, 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.*