# Ultra Boost Revo vs Viewer3D

The clearest difference is price: Ultra Boost Revo at Free against Viewer3D's $0.99. Ultra Boost Revo also leads on iOS requirement (9.0 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

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

Ultra Boost Revo ships an update every 2 months, Viewer3D every 3 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Ultra Boost Revo | Viewer3D |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 100 MB | 24 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ECU=SHOP](https://appshunter.io/developer/1389703440) | [北京秤鑫科技有限公司](https://appshunter.io/developer/1865113112) |

## What reviewers say

### Ultra Boost Revo

[App page](https://appshunter.io/ios/app/ultra-boost-revo/id1485523655)

**In-app purchases:** none


### Viewer3D

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Ultra Boost Revo free?

Ultra Boost Revo is free to download, with no in-app purchases.

### Is Viewer3D free?

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

### Do Ultra Boost Revo or Viewer3D have ads?

Neither Ultra Boost Revo nor Viewer3D shows ads.

### Which is updated more often, Ultra Boost Revo or Viewer3D?

Ultra Boost Revo ships an update every 2 months, and Viewer3D every 3 months. Most recently, Ultra Boost Revo was updated on November 3, 2026 and Viewer3D on October 31, 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.*