# Preview3D vs DotShake Brush Studio

The clearest difference is price: DotShake Brush Studio at $0.99 against Preview3D's $9.99. DotShake Brush Studio also leads on update cadence (every 3 days vs weekly). Preview3D's advantage is chart position (#52 vs unranked) and device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

Preview3D costs $9.99 and DotShake Brush Studio $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Preview3D ships an update weekly, DotShake Brush Studio every 3 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Preview3D | DotShake Brush Studio |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Paid | — |
| Best chart rank | **#52** | — |
| Size | 14 MB | 108 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michal Fanta](https://appshunter.io/developer/6787018314) | [Zhen Chen](https://appshunter.io/developer/1814103072) |

## What reviewers say

### Preview3D

[App page](https://appshunter.io/ios/app/preview3d/id6787018312)

**Currently charting:** #52 Top Paid · Graphics & Design (US App Store)

View and inspect a wide range of 3D file formats natively on your iPhone and iPad. Supports CAD, mesh, and 3D printing files with detailed information and AR capabilities. Offline functionality ensures privacy and speed.

**Highlights:** Native viewer for STEP, STL, 3MF, G-code, and more, Detailed model inspection (dimensions, volume, surface area), Full-color 3MF rendering, Augmented Reality (AR) Quick Look integration, Offline functionality, no account or web uploads, Quick Look and 3D thumbnail support in Files app, Universal purchase for iPhone, iPad, and Mac

**In-app purchases:** none


### DotShake Brush Studio

[App page](https://appshunter.io/ios/app/dotshake-brush-studio/id6797263618)

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

**In-app purchases:** none


## Frequently asked questions

### Is Preview3D free?

Preview3D costs $9.99, with no in-app purchases.

### Is DotShake Brush Studio free?

DotShake Brush Studio costs $0.99, with no in-app purchases.

### Do Preview3D or DotShake Brush Studio have ads?

Neither Preview3D nor DotShake Brush Studio shows ads.

### Which is updated more often, Preview3D or DotShake Brush Studio?

Preview3D ships an update weekly, and DotShake Brush Studio every 3 days. Most recently, Preview3D was updated on October 18, 2026 and DotShake Brush Studio on October 15, 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.*