# QuicSmile Pro vs DocuRail

The clearest difference is update cadence: DocuRail at every 2 months against QuicSmile Pro's every 7 months. QuicSmile Pro's advantage is iOS requirement (9.0 vs 16.1). 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.

QuicSmile Pro ships an update every 7 months, DocuRail every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | QuicSmile Pro | DocuRail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Size | 1.4 GB | 46 MB |
| Requires iOS | **9.0** | 16.1 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [IMPERIAL TECH CO., LTD.](https://appshunter.io/developer/1298884926) | [Switch Rail](https://appshunter.io/developer/1591916244) |

## What reviewers say

### QuicSmile Pro

[App page](https://appshunter.io/ios/app/quicsmile-pro/id1476367956)

**In-app purchases:** none


### DocuRail

[App page](https://appshunter.io/ios/app/docurail/id1591916242)

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

**In-app purchases:** none


## Frequently asked questions

### Is QuicSmile Pro free?

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

### Is DocuRail free?

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

### Do QuicSmile Pro or DocuRail have ads?

Neither QuicSmile Pro nor DocuRail shows ads.

### Which is updated more often, QuicSmile Pro or DocuRail?

QuicSmile Pro ships an update every 7 months, and DocuRail every 2 months. Most recently, QuicSmile Pro was updated on November 3, 2026 and DocuRail on October 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.*