# 3D Simplify vs Viewport 3D

The clearest difference is in-app purchases: Viewport 3D at none against 3D Simplify's 2. 3D Simplify's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 3D Simplify sells 2 in-app purchases, starting at $2.99 per month. Viewport 3D asks for nothing beyond the download.

3D Simplify ships an update every 4 days, Viewport 3D every 2 weeks. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 3D Simplify | Viewport 3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 7 MB | 47 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Po hin Ma](https://appshunter.io/developer/1642346331) | [Amar Shinde](https://appshunter.io/developer/1896335477) |

## What reviewers say

### 3D Simplify

[App page](https://appshunter.io/ios/app/3d-simplify-usdz-optimizer/id6759809139)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reduce3D Pro Monthly | $2.99 | per month |
| Reduce3D Pro Yearly | $19.99 | per year |


### Viewport 3D

[App page](https://appshunter.io/ios/app/viewport-3d/id6777973275)

**In-app purchases:** none


## Frequently asked questions

### Is 3D Simplify free?

3D Simplify is free to download, with in-app purchases available.

### Is Viewport 3D free?

Viewport 3D is free to download, with no in-app purchases.

### Do 3D Simplify or Viewport 3D have ads?

Neither 3D Simplify nor Viewport 3D shows ads.

### Which is updated more often, 3D Simplify or Viewport 3D?

3D Simplify ships an update every 4 days, and Viewport 3D every 2 weeks. Most recently, 3D Simplify was updated on October 1, 2026 and Viewport 3D 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.*