# ZeroFox PSI vs Legion Physical Security

The clearest difference is in-app purchases: ZeroFox PSI at none against Legion Physical Security's 1. ZeroFox PSI also leads on iOS requirement (15.6 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Legion Physical Security sells 1 in-app purchase, starting at $29.99 per month. ZeroFox PSI asks for nothing beyond the download.

## The numbers

| Metric | ZeroFox PSI | Legion Physical Security |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 54 MB | 4 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [ZeroFOX, Inc.](https://appshunter.io/developer/1440057574) | [GERALD ANDREW LOMBARDI](https://appshunter.io/developer/1887143870) |

## What reviewers say

### ZeroFox PSI

[App page](https://appshunter.io/ios/app/zerofox-psi/id6504121650)

**Features:** macOS Compatibility

**In-app purchases:** none


### Legion Physical Security

[App page](https://appshunter.io/ios/app/legion-physical-security/id6767044822)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Legion Professional | $29.99 | per month |


## Frequently asked questions

### Is ZeroFox PSI free?

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

### Is Legion Physical Security free?

Legion Physical Security is free to download, with in-app purchases available.

### Do ZeroFox PSI or Legion Physical Security have ads?

Neither ZeroFox PSI nor Legion Physical Security 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.*