# IS Viewer vs Zippy Infinity Plus

The clearest difference is update cadence: Zippy Infinity Plus at every 10 days against IS Viewer's every 5 weeks. On price, ads, 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.

IS Viewer ships an update every 5 weeks, Zippy Infinity Plus every 10 days. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | IS Viewer | Zippy Infinity Plus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 28 MB | 235 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intex System SRL](https://appshunter.io/developer/1318159644) | [Linea Computers Srl](https://appshunter.io/developer/668984570) |

## What reviewers say

### IS Viewer

[App page](https://appshunter.io/ios/app/is-viewer/id1659883008)

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

**In-app purchases:** none


### Zippy Infinity Plus

[App page](https://appshunter.io/ios/app/zippy-infinity-plus/id6793888655)

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

**In-app purchases:** none


## Frequently asked questions

### Is IS Viewer free?

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

### Is Zippy Infinity Plus free?

Zippy Infinity Plus is free to download, with no in-app purchases.

### Do IS Viewer or Zippy Infinity Plus have ads?

Neither IS Viewer nor Zippy Infinity Plus shows ads.

### Which is updated more often, IS Viewer or Zippy Infinity Plus?

IS Viewer ships an update every 5 weeks, and Zippy Infinity Plus every 10 days. Most recently, IS Viewer was updated on October 15, 2026 and Zippy Infinity Plus 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.*