# Flat Stomach & Core vs PH Physique Lab

The clearest difference is in-app purchases: PH Physique Lab at none against Flat Stomach & Core's 4. Flat Stomach & Core's advantage is iOS requirement (13.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. Flat Stomach & Core sells 4 in-app purchases, starting at $4.99 per 7 days. PH Physique Lab asks for nothing beyond the download.

## The numbers

| Metric | Flat Stomach & Core | PH Physique Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 54 MB | 175 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [CodeCross](https://appshunter.io/developer/1660793254) | [PH Physique Lab](https://appshunter.io/developer/6789209930) |

## What reviewers say

### Flat Stomach & Core

[App page](https://appshunter.io/ios/app/flat-stomach-and-core-abs-work/id6761374056)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access to Flat Stomach | $4.99 | per 7 days |
| Unlimited Access to Flat Stomach | $4.99 | per 7 days |
| Unlimited Access to Flat Stomach | $14.99 | per month |
| Unlimited Access to Flat Stomach | $14.99 | per month |


### PH Physique Lab

[App page](https://appshunter.io/ios/app/ph-physique-lab/id6789209927)

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Flat Stomach & Core free?

Flat Stomach & Core is free to download, with in-app purchases available.

### Is PH Physique Lab free?

PH Physique Lab is free to download, with no in-app purchases.

### Do Flat Stomach & Core or PH Physique Lab have ads?

Neither Flat Stomach & Core nor PH Physique Lab shows ads.

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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.*