# Vision Viewer vs ZenTerm

The clearest difference is ads: ZenTerm at none against Vision Viewer's shown. ZenTerm also leads on update cadence (every 9 days vs every 3 weeks). Vision Viewer's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

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

Vision Viewer ships an update every 3 weeks, ZenTerm every 9 days. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Vision Viewer | ZenTerm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 61 MB | 50 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [YOON HO YOUNG](https://appshunter.io/developer/1864792745) | [Yuki Nakano](https://appshunter.io/developer/1886708687) |

## What reviewers say

### Vision Viewer

[App page](https://appshunter.io/ios/app/vision-viewer/id6757133739)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZenTerm

[App page](https://appshunter.io/ios/app/zenterm/id6760935103)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vision Viewer free?

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

### Is ZenTerm free?

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

### Do Vision Viewer or ZenTerm have ads?

Vision Viewer shows ads; ZenTerm does not.

### Which is updated more often, Vision Viewer or ZenTerm?

Vision Viewer ships an update every 3 weeks, and ZenTerm every 9 days. Most recently, Vision Viewer was updated on October 17, 2026 and ZenTerm on October 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.*