# Norwegian 4x4 Protocol vs KBMH

The clearest difference is review sentiment: KBMH at 69% against Norwegian 4x4 Protocol's 24%. KBMH also leads on price (Free vs $5.99) and rating (4.7 vs 4.3). Norwegian 4x4 Protocol's advantage is in-app purchases (none vs 10) and chart position (#199 vs unranked). On update cadence, ads and device support there is nothing between them.

KBMH is free to download; Norwegian 4x4 Protocol costs $5.99 up front. KBMH sells 9 in-app purchases, starting at $11.99 per month. Norwegian 4x4 Protocol asks for nothing beyond the download.

KBMH holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: KBMH has 463 ratings behind it against 55, so its average is the more settled of the two. Written reviews point the same way: 24% of Norwegian 4x4 Protocol's written reviews are positive against 69% of KBMH's.

Norwegian 4x4 Protocol ships an update every 3 weeks, KBMH every 2 weeks. The most recent releases landed on November 8, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Norwegian 4x4 Protocol | KBMH |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | [4.3 (55 ratings)](https://appshunter.io/ios/app/norwegian-4x4-protocol/id6499464775/reviews) | **[4.7 (463 ratings)](https://appshunter.io/ios/app/kbmh-kettlebell-workouts/id6670397856/reviews)** |
| Number of ratings | 55 | **463** |
| Positive reviews | 23.5% of reviews | **68.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#199** | — |
| Size | 5 MB | 92 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nikita Yampolski](https://appshunter.io/developer/1441915166) | [palmatech ltd](https://appshunter.io/developer/1723139901) |

## What reviewers say

### Norwegian 4x4 Protocol

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

**Currently charting:** #199 Top Paid · Health & Fitness (US App Store)

This app provides a precise, distraction-free timer for the scientifically studied Norwegian 4x4 HIIT method. Improve cardiovascular performance and endurance with guided interval training cycles. Track your progress and adapt workouts to your fitness level.

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

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

**In-app purchases:** none


### KBMH

[App page](https://appshunter.io/ios/app/kbmh-kettlebell-workouts/id6670397856)

Achieve full-body fitness at home with guided kettlebell workouts. Access over 200 follow-along routines, structured programs for various goals, and expert tips, all requiring just one kettlebell.

**Highlights:** 200+ kettlebell workouts, Video demonstrations, Structured training programs, Smart timers with voice cues, Beginner-friendly options, Exercise library with form tips

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Full Access | $11.99 | per month |
| Monthly | $29.99 | per month |
| Monthly Full Access | $29.99 | per month |
| Yearly Full Access With Trial | $99.99 | per year |
| Full Access, First Year at 50% Off | $99.99 | per year |
| Annual PRO Access | $249.99 | per year |
| Yearly Full Access With Trial | $249.99 | per year |
| Strength & Muscle Builder | $59.99 | one-time |
| Cardio HIIT Fat Burner 3d/week | $99.99 | one-time |

**What reviewers like**

- 💪 Effective workouts
- ⏱️ Efficient and time-saving
- ✅ Easy to follow
- 🎯 Great for consistency
- 💡 AI workout builder

**What reviewers complain about**

- 💸 Expensive subscription
- 🍎 No Apple Health integration
- ⌚ No smartwatch integration
- 🎶 Music playback disruption
- 🏋️ Difficulty logging individual exercise weights

**Reported bugs**

- App won't load/stuck at percentage
- App not working
- Internet security prompts
- Exercise library not showing content
- Cannot enlarge exercise pictures

**Requested features**

- Add Apple Health and Fitness connectivity
- Add smartwatch/tracker integration
- Improve music playback to avoid disruption
- Allow input of weight for each individual exercise
- Provide video examples for complex sessions


## Frequently asked questions

### Is Norwegian 4x4 Protocol free?

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

### Is KBMH free?

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

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

KBMH is rated higher. Norwegian 4x4 Protocol averages 4.3 out of 5 from 55 ratings, while KBMH averages 4.7 from 463 ratings.

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

Neither Norwegian 4x4 Protocol nor KBMH shows ads.

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

Norwegian 4x4 Protocol ships an update every 3 weeks, and KBMH every 2 weeks. Most recently, Norwegian 4x4 Protocol was updated on November 8, 2026 and KBMH on November 12, 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.*