# PDFDarkMode vs HTML Reader Offline

The clearest difference is update cadence: PDFDarkMode at every 4 days against HTML Reader Offline's every 2 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. PDFDarkMode sells 5 one-off in-app purchases and HTML Reader Offline sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for PDFDarkMode against 5.0 for HTML Reader Offline. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

PDFDarkMode ships an update every 4 days, HTML Reader Offline every 2 months. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | PDFDarkMode | HTML Reader Offline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/pdfdarkmode-customize-pdfs/id6744872327/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/html-reader-offline/id6778323048/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 4 MB | 2 MB |
| Requires iOS | **15.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wildcatter LLC](https://appshunter.io/developer/1229934042) | [发达 陈](https://appshunter.io/developer/6776674425) |

## What reviewers say

### PDFDarkMode

[App page](https://appshunter.io/ios/app/pdfdarkmode-customize-pdfs/id6744872327)

Easily convert PDFs to a comfortable dark mode with custom text and background colors. Reduce eye strain while reading or studying long documents. Save and revisit your personalized PDFs in a private library.

**Highlights:** Upload PDFs from device, Customize text and background colors, Preview dark mode changes, Download converted PDFs, Personal PDF library, Private by design

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Download PDF (up to 100 pages) | $0.99 | one-time |
| Dark Mode PDF Download | $2.99 | one-time |
| Download PDF (up to 500 pages) | $4.99 | one-time |
| PDFDarkMode Pro | $9.99 | one-time |
| Download PDF (500+ pages) | $9.99 | one-time |


### HTML Reader Offline

[App page](https://appshunter.io/ios/app/html-reader-offline/id6778323048)

This app allows users to read local HTML and ZIP files offline. It's designed for developers, students, and learners to access documentation and course materials on their devices without an internet connection. Features include smart ZIP support, a built-in reader, table of contents, bookmarks, and reading progress tracking.

**Highlights:** Offline HTML and ZIP file reading, Smart ZIP support with index.html detection, Built-in WKWebView reader, Auto-generated table of contents, Bookmarks and reading progress saving, Light, Dark, and Auto themes, Long-image export

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Cup of Coffee | $0.99 | one-time |


## Frequently asked questions

### Is PDFDarkMode free?

PDFDarkMode is free to download, with in-app purchases available.

### Is HTML Reader Offline free?

HTML Reader Offline is free to download, with in-app purchases available.

### Which has better reviews, PDFDarkMode or HTML Reader Offline?

PDFDarkMode and HTML Reader Offline are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do PDFDarkMode or HTML Reader Offline have ads?

Neither PDFDarkMode nor HTML Reader Offline shows ads.

### Which is updated more often, PDFDarkMode or HTML Reader Offline?

PDFDarkMode ships an update every 4 days, and HTML Reader Offline every 2 months. Most recently, PDFDarkMode was updated on September 10, 2026 and HTML Reader Offline on September 19, 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.*