# iBook PRO vs System Nice

The clearest difference is iOS requirement: iBook PRO at 14.0 against System Nice's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

iBook PRO ships an update monthly, System Nice every 5 weeks. The most recent releases landed on September 25, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | iBook PRO | System Nice |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 67 MB | 43 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Saeed Shibli](https://appshunter.io/developer/1692757453) | [Crypteor capital - Fzco](https://appshunter.io/developer/1697122815) |

## What reviewers say

### iBook PRO

[App page](https://appshunter.io/ios/app/ibook-pro/id6464568024)

**Features:** macOS Compatibility

**In-app purchases:** none


### System Nice

[App page](https://appshunter.io/ios/app/system-nice/id6781612044)

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

**In-app purchases:** none


## Frequently asked questions

### Is iBook PRO free?

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

### Is System Nice free?

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

### Do iBook PRO or System Nice have ads?

Neither iBook PRO nor System Nice shows ads.

### Which is updated more often, iBook PRO or System Nice?

iBook PRO ships an update monthly, and System Nice every 5 weeks. Most recently, iBook PRO was updated on September 25, 2026 and System Nice on September 30, 2026.

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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.*