# Viewer3D vs TraceSky

The clearest difference is price: TraceSky at Free against Viewer3D's $0.99. TraceSky also leads on iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

TraceSky is free to download; Viewer3D costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Viewer3D | TraceSky |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 24 MB | 28 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京秤鑫科技有限公司](https://appshunter.io/developer/1865113112) | [景华 许](https://appshunter.io/developer/1833863874) |

## What reviewers say

### Viewer3D

[App page](https://appshunter.io/ios/app/viewer3d/id6757183916)

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

**In-app purchases:** none


### TraceSky

[App page](https://appshunter.io/ios/app/tracesky/id6771047295)

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

**In-app purchases:** none


## Frequently asked questions

### Is Viewer3D free?

Viewer3D costs $0.99, with no in-app purchases.

### Is TraceSky free?

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

### Do Viewer3D or TraceSky have ads?

Neither Viewer3D nor TraceSky shows ads.

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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.*