# TIFF Viewer vs GuardNumber

The clearest difference is in-app purchases: GuardNumber at none against TIFF Viewer's 1. GuardNumber also leads on ads (none vs shown) and update cadence (every 2 days vs every 10 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. TIFF Viewer sells 1 one-off in-app purchase. GuardNumber asks for nothing beyond the download.

TIFF Viewer ships an update every 10 days, GuardNumber every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | TIFF Viewer | GuardNumber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/tiff-viewer/id6743369162/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 12 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ismail Carlik](https://appshunter.io/developer/1748163338) | [Semih Silistre](https://appshunter.io/developer/1879757209) |

## What reviewers say

### TIFF Viewer

[App page](https://appshunter.io/ios/app/tiff-viewer/id6743369162)

Easily open and view multi-page TIFF images and documents. Convert your TIFF files to PDF format with a single click for convenient sharing and archiving. Experience high-fidelity rendering and smooth navigation through your files.

**Highlights:** Multi-page TIFF support, One-click PDF conversion, High-fidelity image rendering, Smooth zoom and pan, Simple user interface, Fast and stable performance

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


### GuardNumber

[App page](https://appshunter.io/ios/app/guardnumber/id6760973731)

**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 GuardNumber free?

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

### Do TIFF Viewer or GuardNumber have ads?

TIFF Viewer shows ads; GuardNumber does not.

### Which is updated more often, TIFF Viewer or GuardNumber?

TIFF Viewer ships an update every 10 days, and GuardNumber every 2 days. Most recently, TIFF Viewer was updated on October 30, 2026 and GuardNumber on October 31, 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.*