# Proving Ground vs KAIZEN Norwell

The clearest difference is ads: Proving Ground at none against KAIZEN Norwell's shown. Proving Ground also leads on update cadence (monthly vs every 3 months). KAIZEN Norwell's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Proving Ground ships an update monthly, KAIZEN Norwell every 3 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Proving Ground | KAIZEN Norwell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (210 ratings)](https://appshunter.io/ios/app/proving-ground/id1530592082/reviews)** | — |
| Number of ratings | **210** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 38 MB | 151 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Proving Ground Limited Liability Corporation](https://appshunter.io/developer/1530592084) | [Ikigai Fitness LLC](https://appshunter.io/developer/1683352469) |

## What reviewers say

### Proving Ground

[App page](https://appshunter.io/ios/app/proving-ground/id1530592082)

Book functional training classes and personal training sessions at a revolutionary studio. View schedules, reserve spots in group classes, and purchase class packages directly through the app. Focus on smart training with mobility and recovery integrated into every workout.

**Highlights:** Book training classes, View class schedules, Purchase class packages, Personal training sessions, Functional training focus, Mobility and recovery integration

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

**In-app purchases:** none


### KAIZEN Norwell

[App page](https://appshunter.io/ios/app/kaizen-norwell/id6448054773)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Proving Ground free?

Proving Ground is free to download, with no in-app purchases.

### Is KAIZEN Norwell free?

KAIZEN Norwell is free to download, with no in-app purchases.

### Do Proving Ground or KAIZEN Norwell have ads?

KAIZEN Norwell shows ads; Proving Ground does not.

### Which is updated more often, Proving Ground or KAIZEN Norwell?

Proving Ground ships an update monthly, and KAIZEN Norwell every 3 months. Most recently, Proving Ground was updated on November 3, 2026 and KAIZEN Norwell 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.*