# UPDF vs PDFDarkMode

The clearest difference is rating: PDFDarkMode at 5.0 against UPDF's 4.6. PDFDarkMode also leads on review sentiment (100% vs 84%) and update cadence (every 4 days vs fortnightly). UPDF's advantage is ratings volume (678 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. UPDF sells 13 in-app purchases, starting at $9.99 per month and PDFDarkMode sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDFDarkMode holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: UPDF has 678 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 84% of UPDF's written reviews are positive against 100% of PDFDarkMode's.

UPDF ships an update fortnightly, PDFDarkMode every 4 days. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | UPDF | PDFDarkMode |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (678 ratings)](https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdfdarkmode-customize-pdfs/id6744872327/reviews)** |
| Number of ratings | **678** | 1 |
| Positive reviews | 84.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 195 MB | 4 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Superace Software Technology Co., Ltd.](https://appshunter.io/developer/1595826625) | [Wildcatter LLC](https://appshunter.io/developer/1229934042) |

## What reviewers say

### UPDF

[App page](https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623)

This app is a powerful PDF editor for mobile devices, offering AI-powered features for summarizing, translating, and chatting with documents. It allows users to read, edit, annotate, convert, and sign PDFs, as well as scan paper documents into editable files. Manage all your PDF files and protect them with security features.

**Highlights:** AI-powered summarization and translation, Edit text, images, and watermarks in PDFs, Annotate with various markup tools, Convert PDFs to Word, Excel, and PPT, Scan documents to editable PDFs, Sign and fill PDF forms, Organize and protect PDF files

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| UPDF AI Unlimited | $15.00 | per month |
| UPDF AI Standard | $15.00 | per month |
| UPDF Pro + AI Unlimited | $18.99 | per month |
| Quarterly Subscription | $19.00 | per 3 months |
| Annual Subscription | $49.99 | per year |
| UPDF AI Standard | $69.00 | per year |
| UPDF AI Unlimited | $79.00 | per year |
| UPDF Pro + AI Standard | $98.99 | per year |
| UPDF Pro + AI Unlimited | $118.99 | per year |
| Perpetual License | $79.99 | one-time |
| Perpetual License | $128.99 | one-time |
| UPDF & AI Add-on for iOS | $148.99 | one-time |

**What reviewers like**

- 🚀 Excellent PDF editor
- 👍 Intuitive and easy to use
- 🔒 Secure file management
- 💡 Powerful features like AI-powered summarization
- 🚀 Fast and responsive performance

**What reviewers complain about**

- 🐛 Occasional crashes or stability issues
- 💡 Need for more customization options
- 💡 Lack of integration with third-party cloud storage
- 🐛 Issues with handwriting recognition and annotation

**Reported bugs**

- Inability to edit text directly in PDF files
- Inconsistent behavior when switching between devices
- Occasional loss of editing progress when app is minimized

**Requested features**

- Add password protection for PDF files
- Improve file organization and folder management
- Implement keyboard shortcuts for power users
- Expand OCR capabilities and text extraction
- Allow custom signature and stamp imports


### 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 UPDF free?

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

### Is PDFDarkMode free?

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

### Which has better reviews, UPDF or PDFDarkMode?

PDFDarkMode is rated higher. UPDF averages 4.6 out of 5 from 678 ratings, while PDFDarkMode averages 5.0 from 1 ratings.

### Do UPDF or PDFDarkMode have ads?

Neither UPDF nor PDFDarkMode shows ads.

### Which is updated more often, UPDF or PDFDarkMode?

UPDF ships an update fortnightly, and PDFDarkMode every 4 days. Most recently, UPDF was updated on September 26, 2026 and PDFDarkMode on September 10, 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.*