# ChmPlus Lite vs ScanScan(白描)

The clearest difference is rating: ScanScan(白描) at 4.8 against ChmPlus Lite's 3.6. ScanScan(白描) also leads on review sentiment (87% vs 49%) and ads (none vs shown). ChmPlus Lite's advantage is in-app purchases (none vs 5) and iOS requirement (11.0 vs 15.0). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. ScanScan(白描) sells 5 one-off in-app purchases. ChmPlus Lite asks for nothing beyond the download.

ScanScan(白描) holds the better App Store score, 4.8 against 3.6. That said, the two scores are not equally well evidenced: ScanScan(白描) has 349 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 49% of ChmPlus Lite's written reviews are positive against 87% of ScanScan(白描)'s.

ChmPlus Lite ships an update monthly, ScanScan(白描) every 2 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ChmPlus Lite | ScanScan(白描) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (11 ratings)](https://appshunter.io/ios/app/chmplus-lite-chmepub-reader/id443454952/reviews) | **[4.8 (349 ratings)](https://appshunter.io/ios/app/scanscan-ocr-text-scanner/id1249901692/reviews)** |
| Number of ratings | 11 | **349** |
| Positive reviews | 49.3% of reviews | **86.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 47 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [兰桂 吴](https://appshunter.io/developer/433671404) | [新乐 陶](https://appshunter.io/developer/826439308) |

## What reviewers say

### ChmPlus Lite

[App page](https://appshunter.io/ios/app/chmplus-lite-chmepub-reader/id443454952)

This app allows you to read and manage various document formats, including CHM and EPUB, on your iPhone or iPad. It offers features like highlighting, bookmarking, searching, and file transfer. You can also manage files, create text documents, and save images.

**Highlights:** Read CHM and EPUB files, Highlight, bookmark, and annotate, Full-text search, Wi-Fi and iTunes file transfer, Passcode lock for files, Support for multiple document and archive formats

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

**In-app purchases:** none


### ScanScan(白描)

[App page](https://appshunter.io/ios/app/scanscan-ocr-text-scanner/id1249901692)

This app uses advanced machine learning to accurately extract editable text from images and documents. It can also scan and convert documents into clear PDF files, with support for batch processing and multiple languages.

**Highlights:** Machine learning for accurate OCR, Edit and export OCR results (.txt, .docx), Multi-language text recognition, Scan documents to image/PDF, PDF to image conversion, Batch processing (OCR, color filter), Multi-language translation

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Provide food for cat | $2.99 | one-time |
| 普通会员(永久) | $3.99 | one-time |
| 普通会员(优惠) | $3.99 | one-time |
| 黄金会员(优惠) | $3.99 | one-time |
| Senior VIP (Permanent) | $5.99 | one-time |


## Frequently asked questions

### Is ChmPlus Lite free?

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

### Is ScanScan(白描) free?

ScanScan(白描) is free to download, with in-app purchases available.

### Which has better reviews, ChmPlus Lite or ScanScan(白描)?

ScanScan(白描) is rated higher. ChmPlus Lite averages 3.6 out of 5 from 11 ratings, while ScanScan(白描) averages 4.8 from 349 ratings.

### Do ChmPlus Lite or ScanScan(白描) have ads?

ChmPlus Lite shows ads; ScanScan(白描) does not.

### Which is updated more often, ChmPlus Lite or ScanScan(白描)?

ChmPlus Lite ships an update monthly, and ScanScan(白描) every 2 months. Most recently, ChmPlus Lite was updated on October 13, 2026 and ScanScan(白描) on October 16, 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.*