# OpenDocument Reader vs PDFDarkMode

The clearest difference is review sentiment: PDFDarkMode at 100% against OpenDocument Reader's 30%. PDFDarkMode also leads on rating (5.0 vs 4.5) and ads (none vs shown). OpenDocument Reader's advantage is in-app purchases (none vs 6) and ratings volume (908 vs 1). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDFDarkMode sells 5 one-off in-app purchases. OpenDocument Reader asks for nothing beyond the download.

PDFDarkMode holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: OpenDocument Reader has 908 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of OpenDocument Reader's written reviews are positive against 100% of PDFDarkMode's.

OpenDocument Reader ships an update every 3 weeks, PDFDarkMode every 4 days. The most recent releases landed on October 14, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | OpenDocument Reader | PDFDarkMode |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (908 ratings)](https://appshunter.io/ios/app/opendocument-reader-view-odt/id1510195065/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdfdarkmode-customize-pdfs/id6744872327/reviews)** |
| Number of ratings | **908** | 1 |
| Positive reviews | 30.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 11 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefl und Taschauer OG](https://appshunter.io/developer/1452061742) | [Wildcatter LLC](https://appshunter.io/developer/1229934042) |

## What reviewers say

### OpenDocument Reader

[App page](https://appshunter.io/ios/app/opendocument-reader-view-odt/id1510195065)

View and edit ODT, ODS, and ODP files on your mobile device. Seamlessly open documents from cloud storage or your device's file explorer, with support for password-protected files and keyword searching. Enjoy offline access and basic editing capabilities.

**Highlights:** View ODT, ODS, ODP files, Basic document editing, Open from cloud storage, Password-protected document support, Keyword search and highlighting, Offline functionality, Print documents

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast file opening
- 💡 Good ODT reader

**What reviewers complain about**

- 🐛 Corrupted files upon editing
- 🐛 Presentation issues with formatting and features
- 🐛 Inability to edit spreadsheets properly

**Reported bugs**

- Corrupted files
- Formatting issues
- Crashes and app closing issues

**Requested features**

- Dark mode option
- Better spreadsheet editing capabilities
- Improved file format compatibility


### 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 |


## Frequently asked questions

### Is OpenDocument Reader free?

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

### Is PDFDarkMode free?

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

### Which has better reviews, OpenDocument Reader or PDFDarkMode?

PDFDarkMode is rated higher. OpenDocument Reader averages 4.5 out of 5 from 908 ratings, while PDFDarkMode averages 5.0 from 1 ratings.

### Do OpenDocument Reader or PDFDarkMode have ads?

OpenDocument Reader shows ads; PDFDarkMode does not.

### Which is updated more often, OpenDocument Reader or PDFDarkMode?

OpenDocument Reader ships an update every 3 weeks, and PDFDarkMode every 4 days. Most recently, OpenDocument Reader was updated on October 14, 2026 and PDFDarkMode on September 28, 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.*