# IFSO vs X Core

The clearest difference is device support: IFSO at 3 against X Core's —. X Core's advantage is iOS requirement (12.0 vs 15.1). 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.

## The numbers

| Metric | IFSO | X Core |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Monthly | — |
| Size | 20 MB | 197 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [IFSO INTERNATIONAL FEDERATION FOR THE SURGERY OBESITY AND METABOLIC DISORDERS](https://appshunter.io/developer/1447103345) | [FitPhilia](https://appshunter.io/developer/1178311498) |

## What reviewers say

### IFSO

[App page](https://appshunter.io/ios/app/ifso/id1447103346)

**Features:** macOS Compatibility

**In-app purchases:** none


### X Core

[App page](https://appshunter.io/ios/app/x-core/id1619314603)

**In-app purchases:** none


## Frequently asked questions

### Is IFSO free?

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

### Is X Core free?

X Core is free to download, with no in-app purchases.

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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.*