# PDF Viewer by Nutrient vs Dark PDF

The clearest difference is iOS requirement: Dark PDF at 15.4 against PDF Viewer by Nutrient's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PDF Viewer by Nutrient sells 2 in-app purchases, starting at $6.99 per 3 months and Dark PDF sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 18, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PDF Viewer by Nutrient | Dark PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (9.1K ratings)](https://appshunter.io/ios/app/pdf-viewer-by-nutrient/id1120099014/reviews)** | — |
| Number of ratings | **9.1K** | — |
| Positive reviews | 73.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Freemium | — |
| Size | 112 MB | 11 MB |
| Requires iOS | 17.0 | **15.4** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PSPDFKit GmbH](https://appshunter.io/developer/966931428) | [Muhammet Ozturk](https://appshunter.io/developer/1640983852) |

## What reviewers say

### PDF Viewer by Nutrient

[App page](https://appshunter.io/ios/app/pdf-viewer-by-nutrient/id1120099014)

Easily view, search, and annotate PDF documents on your iPhone and iPad. Import files from cloud services, fill out forms, add signatures, and organize your documents. Advanced features like redaction and combining documents are available with a Pro subscription.

**Highlights:** View and search PDFs, Annotate with highlights and notes, Sign documents digitally, Fill out PDF forms, Organize and share documents, Import from cloud services

**Features:** Family Sharing, iMessage stickers

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Viewer Pro 3 Months | $6.99 | per 3 months |
| PDF Viewer Pro Yearly | $19.99 | per year |

**What reviewers like**

- 🚀 Seamless integration with iCloud and Files app
- 👍 Intuitive annotation tools with Apple Pencil
- 🎨 Versatile highlighting and drawing options
- 💾 Saves annotations to original PDF files
- 🔍 Powerful search and navigation features

**What reviewers complain about**

- 🐛 Occasional crashes and performance issues
- 🤔 Confusing UI and steep learning curve
- 🔀 Difficulty managing and organizing PDF files
- 🔍 Inconsistent text selection and highlighting
- 🔒 Privacy concerns around data collection

**Reported bugs**

- Annotations randomly disappearing or not saving
- Incompatibility issues with certain PDF files
- Scrolling and panning problems on large PDFs
- Unexpected crashes after iOS updates

**Requested features**

- Add a rubber/eraser tool for annotations
- Implement a side-by-side PDF view mode
- Improve palm rejection and gesture support
- Allow customization of toolbar and shortcuts
- Provide better options for PDF file management


### Dark PDF

[App page](https://appshunter.io/ios/app/dark-pdf-night-mode-reader/id6754808094)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - Unlimited - Black Friday | $1.99 | per month |
| Yearly - Unlimited Pdf,Black Friday | $9.99 | per year |
| Monthly - Unlimited PDF | $49.99 | per month |
| Yearly - Unlimited PDF | $99.99 | per year |


## Frequently asked questions

### Is PDF Viewer by Nutrient free?

PDF Viewer by Nutrient is free to download, with in-app purchases available.

### Is Dark PDF free?

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

### Do PDF Viewer by Nutrient or Dark PDF have ads?

Neither PDF Viewer by Nutrient nor Dark PDF shows ads.

### Which is updated more often, PDF Viewer by Nutrient or Dark PDF?

PDF Viewer by Nutrient ships an update monthly, and Dark PDF monthly. Most recently, PDF Viewer by Nutrient was updated on October 18, 2026 and Dark PDF on September 30, 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.*