# FD Pocket Guides vs EMS Protocol Reference

The clearest difference is iOS requirement: FD Pocket Guides at 15.1 against EMS Protocol Reference's 18.0. On price, ads, in-app purchases and device support 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 | FD Pocket Guides | EMS Protocol Reference |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 34 MB | 15 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Paul Brewer](https://appshunter.io/developer/1833718234) | [RespondersAI LLC](https://appshunter.io/developer/1818178681) |

## What reviewers say

### FD Pocket Guides

[App page](https://appshunter.io/ios/app/fd-pocket-guides/id6752264632)

**Features:** macOS Compatibility

**In-app purchases:** none


### EMS Protocol Reference

[App page](https://appshunter.io/ios/app/ems-protocol-reference/id6761344731)

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

**In-app purchases:** none


## Frequently asked questions

### Is FD Pocket Guides free?

FD Pocket Guides is free to download, with no in-app purchases.

### Is EMS Protocol Reference free?

EMS Protocol Reference is free to download, with no in-app purchases.

### Do FD Pocket Guides or EMS Protocol Reference have ads?

Neither FD Pocket Guides nor EMS Protocol Reference 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.*