# Fidoo FX Key vs N51

Fidoo FX Key and N51 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Fidoo FX Key | N51 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Size | 15 MB | 18 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Direct Fidoo a.s.](https://appshunter.io/developer/989241352) | [N51 Invest PTE LTD](https://appshunter.io/developer/1825074976) |

## What reviewers say

### Fidoo FX Key

[App page](https://appshunter.io/ios/app/fidoo-fx-key/id6483930389)

**Features:** macOS Compatibility

**In-app purchases:** none


### N51

[App page](https://appshunter.io/ios/app/n51/id6748307771)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fidoo FX Key free?

Fidoo FX Key is free to download, with no in-app purchases.

### Is N51 free?

N51 is free to download, with no in-app purchases.

### Do Fidoo FX Key or N51 have ads?

Neither Fidoo FX Key nor N51 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.*