# PB Vision vs Norwegian 4x4 Protocol

The clearest difference is ads: Norwegian 4x4 Protocol at none against PB Vision's shown. Norwegian 4x4 Protocol also leads on review sentiment (75% vs 61%). PB Vision's advantage is chart position (#128 vs unranked). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. PB Vision sells 10 in-app purchases, starting at $19.99 per month and Norwegian 4x4 Protocol sells 2 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for PB Vision against 4.6 for Norwegian 4x4 Protocol. Both are backed by a comparable volume of ratings — 143 and 66 respectively. Written reviews are what separate them: 61% of PB Vision's written reviews are positive against 75% of Norwegian 4x4 Protocol's.

PB Vision ships an update every 9 days, Norwegian 4x4 Protocol every 2 weeks. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | PB Vision | Norwegian 4x4 Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (143 ratings)](https://appshunter.io/ios/app/pb-vision/id6467020610/reviews)** | [4.6 (66 ratings)](https://appshunter.io/ios/app/norwegian-4x4-protocol-boreas/id6751464534/reviews) |
| Number of ratings | **143** | 66 |
| Positive reviews | 60.7% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | **#128** | — |
| Size | 172 MB | 10 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Pickleball Vision AI Inc.](https://appshunter.io/developer/1708051951) | [Havard Tryman](https://appshunter.io/developer/1662964293) |

## What reviewers say

### PB Vision

[App page](https://appshunter.io/ios/app/pb-vision/id6467020610)

**Currently charting:** #128 Top Grossing · Sports (US App Store)

This app uses AI to analyze your pickleball game recordings, providing detailed skill ratings and insights. Identify your strengths and weaknesses to improve your game faster and with greater confidence.

**Highlights:** AI-driven game analysis, Actionable skill ratings, Identify strengths and weaknesses, Accelerated game improvement, Detailed player insights

**Features:** Apple Watch app

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $19.99 | per month |
| Premium | $49.99 | per month |
| Starter | $99.99 | per year |
| Premium | $399.00 | per year |
| 200 AI Coaching Credits | $9.99 | one-time |
| 60 Minutes | $9.99 | one-time |
| 1000 AI Coaching Credits | $39.99 | one-time |
| 300 Minutes | $39.99 | one-time |
| 5000 AI Coaching Credits | $99.99 | one-time |
| 1,200 Minutes | $99.99 | one-time |


### 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, iPhone Duo support

**In-app purchases (2)**

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


## Frequently asked questions

### Is PB Vision free?

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

### Is Norwegian 4x4 Protocol free?

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

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

PB Vision is rated higher. PB Vision averages 4.7 out of 5 from 143 ratings, while Norwegian 4x4 Protocol averages 4.6 from 66 ratings.

### Do PB Vision or Norwegian 4x4 Protocol have ads?

PB Vision shows ads; Norwegian 4x4 Protocol does not.

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

PB Vision ships an update every 9 days, and Norwegian 4x4 Protocol every 2 weeks. Most recently, PB Vision was updated on November 7, 2026 and Norwegian 4x4 Protocol on November 9, 2026.

---

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