# TIFF Viewer vs ApprovalSignSec

The clearest difference is in-app purchases: ApprovalSignSec at none against TIFF Viewer's 1. ApprovalSignSec also leads on ads (none vs shown) and iOS requirement (14 vs 17.0). TIFF Viewer's advantage is update cadence (every 10 days vs every 2 months). On price and device support there is nothing between them.

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

TIFF Viewer ships an update every 10 days, ApprovalSignSec every 2 months. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | TIFF Viewer | ApprovalSignSec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/tiff-viewer/id6743369162/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 24 MB |
| Requires iOS | 17.0 | **14** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ismail Carlik](https://appshunter.io/developer/1748163338) | [Kyler Chew](https://appshunter.io/developer/1842634886) |

## 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 |


### ApprovalSignSec

[App page](https://appshunter.io/ios/app/approvalsignsec/id6755142808)

**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 ApprovalSignSec free?

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

### Do TIFF Viewer or ApprovalSignSec have ads?

TIFF Viewer shows ads; ApprovalSignSec does not.

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

TIFF Viewer ships an update every 10 days, and ApprovalSignSec every 2 months. Most recently, TIFF Viewer was updated on October 11, 2026 and ApprovalSignSec on October 17, 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.*