# FerroFocus vs Atomic KB

The clearest difference is iOS requirement: Atomic KB at 15.0 against FerroFocus's 17.6. 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 | FerroFocus | Atomic KB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 2 MB | 6 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Evgeniia Maksimova](https://appshunter.io/developer/1855944311) | [Foldspace Labs LLC](https://appshunter.io/developer/1796614941) |

## What reviewers say

### FerroFocus

[App page](https://appshunter.io/ios/app/ferrofocus/id6755739928)

**Features:** macOS Compatibility

**In-app purchases:** none


### Atomic KB

[App page](https://appshunter.io/ios/app/atomic-kb/id6759266634)

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

**In-app purchases:** none


## Frequently asked questions

### Is FerroFocus free?

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

### Is Atomic KB free?

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

### Do FerroFocus or Atomic KB have ads?

Neither FerroFocus nor Atomic KB 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.*