# gFax vs OZ viewer

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

gFax ships an update weekly, OZ viewer every 2 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | gFax | OZ viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 2 days** |
| Size | 59 MB | 12 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Delynet Co., Ltd.](https://appshunter.io/developer/1730675037) | [YLAB Earth](https://appshunter.io/developer/1777383384) |

## What reviewers say

### gFax

[App page](https://appshunter.io/ios/app/gfax/id6477819141)

**Features:** macOS Compatibility

**In-app purchases:** none


### OZ viewer

[App page](https://appshunter.io/ios/app/oz-viewer/id6737684535)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is gFax free?

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

### Is OZ viewer free?

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

### Do gFax or OZ viewer have ads?

gFax shows ads; OZ viewer does not.

### Which is updated more often, gFax or OZ viewer?

gFax ships an update weekly, and OZ viewer every 2 days. Most recently, gFax was updated on October 14, 2026 and OZ viewer on October 11, 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.*