# Kin Studio vs mos.viewer

The clearest difference is update cadence: Kin Studio at every 3 weeks against mos.viewer's every 4 months. 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.

Kin Studio ships an update every 3 weeks, mos.viewer every 4 months. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Kin Studio | mos.viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/kin-studio/id6455128364/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Ad-supported | — |
| Size | 60 MB | 23 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kinn Technologies, Inc.](https://appshunter.io/developer/1645635760) | [Fabrik 19 AG](https://appshunter.io/developer/501964744) |

## What reviewers say

### Kin Studio

[App page](https://appshunter.io/ios/app/kin-studio/id6455128364)

Visualize and test your app's design, functionality, and interface before launch. Preview content and experience the end result as your users would, ensuring a polished final product.

**Highlights:** Realistic app previews, Interactive feature testing, Content publishing preview, Interface visualization, Functionality testing

**Features:** Vision Pro support

**In-app purchases:** none


### mos.viewer

[App page](https://appshunter.io/ios/app/mosviewer/id6470921065)

**In-app purchases:** none


## Frequently asked questions

### Is Kin Studio free?

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

### Is mos.viewer free?

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

### Do Kin Studio or mos.viewer have ads?

Neither Kin Studio nor mos.viewer shows ads.

### Which is updated more often, Kin Studio or mos.viewer?

Kin Studio ships an update every 3 weeks, and mos.viewer every 4 months. Most recently, Kin Studio was updated on September 30, 2026 and mos.viewer on October 7, 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.*