# Source Viewer XL vs ChmPlus Lite

The clearest difference is price: ChmPlus Lite at Free against Source Viewer XL's $1.99. ChmPlus Lite also leads on update cadence (monthly vs every 28 months) and device support (3 vs 1). Source Viewer XL's advantage is rating (4.7 vs 3.6) and ads (none vs shown). On review sentiment and in-app purchases there is nothing between them.

ChmPlus Lite is free to download; Source Viewer XL costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Source Viewer XL holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 3 and 11 respectively. Written reviews point the same way: 57% of Source Viewer XL's written reviews are positive against 49% of ChmPlus Lite's.

Source Viewer XL ships an update every 28 months, ChmPlus Lite monthly. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Source Viewer XL | ChmPlus Lite |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/source-viewer-xl/id364691406/reviews)** | [3.6 (11 ratings)](https://appshunter.io/ios/app/chmplus-lite-chmepub-reader/id443454952/reviews) |
| Number of ratings | 3 | **11** |
| Positive reviews | **57.1% of reviews** | 49.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 28 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 13 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [兰桂 吴](https://appshunter.io/developer/433671404) |

## What reviewers say

### Source Viewer XL

[App page](https://appshunter.io/ios/app/source-viewer-xl/id364691406)

View the HTML, CSS, and JavaScript source code of any website. Highlighted syntax, extracted links, and image galleries make code analysis easy. Save images, bookmarks, and history for later.

**Highlights:** Syntax highlighting for HTML, CSS, and JavaScript, Extracts and follows embedded links, Lists and views all website images, Saves images to photo album, Bookmark and session history management, Copy/paste code functionality

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Source Viewer XL free?

Source Viewer XL costs $1.99, with no in-app purchases.

### Is ChmPlus Lite free?

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

### Which has better reviews, Source Viewer XL or ChmPlus Lite?

Source Viewer XL is rated higher. Source Viewer XL averages 4.7 out of 5 from 3 ratings, while ChmPlus Lite averages 3.6 from 11 ratings.

### Do Source Viewer XL or ChmPlus Lite have ads?

ChmPlus Lite shows ads; Source Viewer XL does not.

### Which is updated more often, Source Viewer XL or ChmPlus Lite?

Source Viewer XL ships an update every 28 months, and ChmPlus Lite monthly. Most recently, Source Viewer XL was updated on October 3, 2026 and ChmPlus Lite on October 13, 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.*