# PDF Splitter + PDF Merge vs PDF Viewer by Nutrient

The clearest difference is ratings volume: PDF Viewer by Nutrient at 9.1K against PDF Splitter + PDF Merge's 139. PDF Viewer by Nutrient also leads on update cadence (monthly vs every 3 months). PDF Splitter + PDF Merge's advantage is review sentiment (88% vs 74%) and iOS requirement (13.0 vs 17.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. PDF Splitter + PDF Merge sells 2 one-off in-app purchases and PDF Viewer by Nutrient sells 2 in-app purchases, starting at $6.99 per 3 months. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for PDF Splitter + PDF Merge against 4.6 for PDF Viewer by Nutrient. That said, the two scores are not equally well evidenced: PDF Viewer by Nutrient has 9.1K ratings behind it against 139, so its average is the more settled of the two. Written reviews are what separate them: 88% of PDF Splitter + PDF Merge's written reviews are positive against 74% of PDF Viewer by Nutrient's.

PDF Splitter + PDF Merge ships an update every 3 months, PDF Viewer by Nutrient monthly. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PDF Splitter + PDF Merge | PDF Viewer by Nutrient |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (139 ratings)](https://appshunter.io/ios/app/pdf-splitter-plus-pdf-merge/id651952889/reviews) | **[4.6 (9.1K ratings)](https://appshunter.io/ios/app/pdf-viewer-by-nutrient/id1120099014/reviews)** |
| Number of ratings | 139 | **9.1K** |
| Positive reviews | **88.2% of reviews** | 73.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 4 MB | 112 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, Mac, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [青青 余](https://appshunter.io/developer/633344484) | [PSPDFKit GmbH](https://appshunter.io/developer/966931428) |

## What reviewers say

### PDF Splitter + PDF Merge

[App page](https://appshunter.io/ios/app/pdf-splitter-plus-pdf-merge/id651952889)

Easily combine multiple PDF files into a single document or extract specific pages from existing PDFs. This tool supports merging password-protected files if the password is known.

**Highlights:** Extract pages from PDF, Merge specified pages of multiple PDFs, Merge password-protected PDFs, Combine PDFs into one

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock（without restriction） | $3.99 | one-time |
| Unlock iOS without restriction | $3.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Quick and efficient
- 🚀 Intuitive interface
- 👍 Reliable and consistent
- 👍 Excellent value for free app

**What reviewers complain about**

- 🐛 Issues with sorting/reordering files
- 🐛 Limitations on number of files
- 🔧 Outdated or basic interface design
- 💰 Requests payment after trial period

**Reported bugs**

- Corrupts text in merged PDF documents
- Paid version does not work as expected

**Requested features**

- Add page preview functionality
- Allow merging of other file types (not just PDFs)
- Improve file sorting/reordering capabilities
- Provide more customization options


### 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


## Frequently asked questions

### Is PDF Splitter + PDF Merge free?

PDF Splitter + PDF Merge is free to download, with in-app purchases available.

### Is PDF Viewer by Nutrient free?

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

### Which has better reviews, PDF Splitter + PDF Merge or PDF Viewer by Nutrient?

PDF Viewer by Nutrient is rated higher. PDF Splitter + PDF Merge averages 4.5 out of 5 from 139 ratings, while PDF Viewer by Nutrient averages 4.6 from 9.1K ratings.

### Do PDF Splitter + PDF Merge or PDF Viewer by Nutrient have ads?

Neither PDF Splitter + PDF Merge nor PDF Viewer by Nutrient shows ads.

### Which is updated more often, PDF Splitter + PDF Merge or PDF Viewer by Nutrient?

PDF Splitter + PDF Merge ships an update every 3 months, and PDF Viewer by Nutrient monthly. Most recently, PDF Splitter + PDF Merge was updated on September 23, 2026 and PDF Viewer by Nutrient on September 24, 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.*