# Proving Ground vs Slice Weight Loss

The clearest difference is in-app purchases: Proving Ground at none against Slice Weight Loss's 3. Proving Ground also leads on ratings volume (210 vs 3). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Slice Weight Loss sells 3 in-app purchases, starting at $4.99 per month. Proving Ground asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Proving Ground against 5.0 for Slice Weight Loss. That said, the two scores are not equally well evidenced: Proving Ground has 210 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Proving Ground ships an update monthly, Slice Weight Loss every 3 weeks. The most recent releases landed on October 29, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Proving Ground | Slice Weight Loss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (210 ratings)](https://appshunter.io/ios/app/proving-ground/id1530592082/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/slice-weight-loss/id6449506427/reviews) |
| Number of ratings | **210** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 123 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Proving Ground Limited Liability Corporation](https://appshunter.io/developer/1530592084) | [Physicians’ Choice for Weight Loss, Inc.](https://appshunter.io/developer/1689499798) |

## 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


### Slice Weight Loss

[App page](https://appshunter.io/ios/app/slice-weight-loss/id6449506427)

This program promotes a healthy plant-based lifestyle, drawing inspiration from Mediterranean and Blue Zones diets. It helps users achieve weight loss and life goals with immediate feedback to guide their choices.

**Highlights:** Plant-based healthy lifestyle program, Mediterranean and Blue Zones diet principles, Personalized weight loss and life goals, Immediate feedback for choice guidance, Auto-renewing subscription options

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| 3 Month Subscription | $13.99 | per 3 months |
| Yearly Subscription | $49.99 | per year |


## Frequently asked questions

### Is Proving Ground free?

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

### Is Slice Weight Loss free?

Slice Weight Loss is free to download, with in-app purchases available.

### Which has better reviews, Proving Ground or Slice Weight Loss?

Proving Ground and Slice Weight Loss are both rated 5.0 out of 5 on the App Store, from 210 and 3 ratings respectively.

### Do Proving Ground or Slice Weight Loss have ads?

Neither Proving Ground nor Slice Weight Loss shows ads.

### Which is updated more often, Proving Ground or Slice Weight Loss?

Proving Ground ships an update monthly, and Slice Weight Loss every 3 weeks. Most recently, Proving Ground was updated on October 29, 2026 and Slice Weight Loss on October 19, 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.*