# Tiff Viewer vs Aspose.PDF

The clearest difference is review sentiment: Aspose.PDF at 80% against Tiff Viewer's 36%. Aspose.PDF also leads on in-app purchases (none vs 2) and update cadence (every 4 weeks vs every 4 months). Tiff Viewer's advantage is rating (4.5 vs 3.9) and ratings volume (213 vs 15). On price, ads and device support there is nothing between them.

Both are free to download. Tiff Viewer sells 2 one-off in-app purchases. Aspose.PDF asks for nothing beyond the download.

Tiff Viewer holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Tiff Viewer has 213 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 36% of Tiff Viewer's written reviews are positive against 80% of Aspose.PDF's, so the app with the better star average is not the one people write more warmly about.

Tiff Viewer ships an update every 4 months, Aspose.PDF every 4 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Tiff Viewer | Aspose.PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (213 ratings)](https://appshunter.io/ios/app/tiff-viewer/id1214762973/reviews)** | [3.9 (15 ratings)](https://appshunter.io/ios/app/asposepdf-converter-viewer/id1580359566/reviews) |
| Number of ratings | **213** | 15 |
| Positive reviews | 36.4% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 2 MB | 42 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [磊 马](https://appshunter.io/developer/1175878537) | [Aspose Pty Ltd](https://appshunter.io/developer/746299884) |

## What reviewers say

### Tiff Viewer

[App page](https://appshunter.io/ios/app/tiff-viewer/id1214762973)

Easily view and manage TIFF files on your device. Import images via Wi-Fi or from other applications, and convert them into PDF format for convenient sharing and archiving.

**Highlights:** TIFF file reader, Import via Wi-Fi, Import from other apps, Convert TIFF to PDF, Export PDF files

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| tiff points | $0.99 | one-time |
| Tiff Pro | $4.99 | one-time |


### Aspose.PDF

[App page](https://appshunter.io/ios/app/asposepdf-converter-viewer/id1580359566)

This application provides a comprehensive suite of tools for managing PDF files, including conversion, editing, optimization, and security features. It allows users to compress, merge, split, rotate, and protect PDFs, as well as convert them to and from various formats like Word, Excel, and images. The app also offers OCR capabilities and a PDF viewer.

**Highlights:** Compress PDF files, Merge and split PDFs, Convert PDF to Word, Excel, PPT, and images, Protect PDFs with passwords, Add watermarks and signatures, Scan documents to PDF, OCR for searchable PDFs

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

**In-app purchases:** none


## Frequently asked questions

### Is Tiff Viewer free?

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

### Is Aspose.PDF free?

Aspose.PDF is free to download, with no in-app purchases.

### Which has better reviews, Tiff Viewer or Aspose.PDF?

Tiff Viewer is rated higher. Tiff Viewer averages 4.5 out of 5 from 213 ratings, while Aspose.PDF averages 3.9 from 15 ratings.

### Do Tiff Viewer or Aspose.PDF have ads?

Neither Tiff Viewer nor Aspose.PDF shows ads.

### Which is updated more often, Tiff Viewer or Aspose.PDF?

Tiff Viewer ships an update every 4 months, and Aspose.PDF every 4 weeks. Most recently, Tiff Viewer was updated on November 6, 2026 and Aspose.PDF on November 5, 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.*