# Smart PDF Document Scanner vs ChecklisTree

The clearest difference is ads: ChecklisTree at none against Smart PDF Document Scanner's shown. ChecklisTree also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (12.0 vs 16.6). On price, 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.

Smart PDF Document Scanner ships an update every 6 months, ChecklisTree every 3 weeks. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Smart PDF Document Scanner | ChecklisTree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/smart-pdf-document-scanner/id1181147140/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 67 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qrayon, LLC](https://appshunter.io/developer/354980265) | [QDegrees Services Private Limited](https://appshunter.io/developer/1448151423) |

## What reviewers say

### Smart PDF Document Scanner

[App page](https://appshunter.io/ios/app/smart-pdf-document-scanner/id1181147140)

Transform your phone into a powerful document scanner. Capture, enhance, and organize your important papers with tack-sharp scans and a color-coded tagging system. Easily share PDFs for business or personal use.

**Highlights:** Tack-sharp document scanning, Automatic edge detection and perspective correction, Color, grayscale, and black-and-white scan options, FlashAssist for low-light scanning, Color-coded tagging system for organization, Quickly scan and share PDFs

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

**In-app purchases:** none


### ChecklisTree

[App page](https://appshunter.io/ios/app/checklistree/id6745742528)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart PDF Document Scanner free?

Smart PDF Document Scanner is free to download, with no in-app purchases.

### Is ChecklisTree free?

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

### Do Smart PDF Document Scanner or ChecklisTree have ads?

Smart PDF Document Scanner shows ads; ChecklisTree does not.

### Which is updated more often, Smart PDF Document Scanner or ChecklisTree?

Smart PDF Document Scanner ships an update every 6 months, and ChecklisTree every 3 weeks. Most recently, Smart PDF Document Scanner was updated on October 11, 2026 and ChecklisTree 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.*