# FD Controller vs dfirOS

The clearest difference is in-app purchases: FD Controller at none against dfirOS's 2. FD Controller also leads on iOS requirement (13.4 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. dfirOS sells 2 in-app purchases, starting at $6.99 per month. FD Controller asks for nothing beyond the download.

## The numbers

| Metric | FD Controller | dfirOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 20 MB | 19 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Ferrous Design, Inc.](https://appshunter.io/developer/1716630829) | [tumiOS LLC](https://appshunter.io/developer/1878247001) |

## What reviewers say

### FD Controller

[App page](https://appshunter.io/ios/app/fd-controller/id6618111989)

**Features:** macOS Compatibility

**In-app purchases:** none


### dfirOS

[App page](https://appshunter.io/ios/app/dfiros/id6759353337)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dfirOS Pro Monthly | $6.99 | per month |
| dfirOS Pro | $49.99 | per year |


## Frequently asked questions

### Is FD Controller free?

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

### Is dfirOS free?

dfirOS is free to download, with in-app purchases available.

### Do FD Controller or dfirOS have ads?

Neither FD Controller nor dfirOS 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.*