# RacBook vs SINapp

The clearest difference is update cadence: RacBook at every 3 weeks against SINapp's every 12 months. SINapp's advantage is iOS requirement (11.0 vs 16.6). 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.

RacBook ships an update every 3 weeks, SINapp every 12 months. The most recent releases landed on September 9, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | RacBook | SINapp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 12 months |
| Size | 56 MB | 29 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Ars Digitalia srls](https://appshunter.io/developer/1098138383) | [Expomeeting](https://appshunter.io/developer/1498921317) |

## What reviewers say

### RacBook

[App page](https://appshunter.io/ios/app/racbook/id1098138384)

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

**In-app purchases:** none


### SINapp

[App page](https://appshunter.io/ios/app/sinapp/id6737512009)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RacBook free?

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

### Is SINapp free?

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

### Do RacBook or SINapp have ads?

Neither RacBook nor SINapp shows ads.

### Which is updated more often, RacBook or SINapp?

RacBook ships an update every 3 weeks, and SINapp every 12 months. Most recently, RacBook was updated on September 9, 2026 and SINapp on September 7, 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.*