# TopOpt 3D vs UniVertex

The clearest difference is update cadence: UniVertex at every 2 days against TopOpt 3D's every 6 weeks. TopOpt 3D's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TopOpt 3D ships an update every 6 weeks, UniVertex every 2 days. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | TopOpt 3D | UniVertex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/topopt-3d/id881472301/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 103 MB | 4 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [DTU Mechanical Engineering](https://appshunter.io/developer/507453160) | [Frederik Bergenholtz](https://appshunter.io/developer/1896570176) |

## What reviewers say

### TopOpt 3D

[App page](https://appshunter.io/ios/app/topopt-3d/id881472301)

Perform 3D structural optimization using topology optimization on your iPad or iPhone. Adjust loads, supports, volume fractions, and grid sizes to observe design evolution. Experiment with different parameters to discover new minimums.

**Highlights:** 3D topology optimization, Adjustable loads and supports, Variable volume fractions, Experiment with grid sizes, Design evolution visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### UniVertex

[App page](https://appshunter.io/ios/app/univertex/id6768414060)

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

**In-app purchases:** none


## Frequently asked questions

### Is TopOpt 3D free?

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

### Is UniVertex free?

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

### Do TopOpt 3D or UniVertex have ads?

Neither TopOpt 3D nor UniVertex shows ads.

### Which is updated more often, TopOpt 3D or UniVertex?

TopOpt 3D ships an update every 6 weeks, and UniVertex every 2 days. Most recently, TopOpt 3D was updated on October 21, 2026 and UniVertex on October 17, 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.*