# TopOpt Game vs Astable

The clearest difference is review sentiment: Astable at 50% against TopOpt Game's 0%. Astable also leads on update cadence (every 2 weeks vs every 3 months). TopOpt Game's advantage is price (Free vs $4.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

TopOpt Game is free to download; Astable costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TopOpt Game ships an update every 3 months, Astable every 2 weeks. The most recent releases landed on June 1, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | TopOpt Game | Astable |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/topopt-game/id909328876/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Size | 84 MB | 35 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [DTU Mechanical Engineering](https://appshunter.io/developer/507453160) | [家豪 鲁](https://appshunter.io/developer/1665801193) |

## What reviewers say

### TopOpt Game

[App page](https://appshunter.io/ios/app/topopt-game/id909328876)

This educational application helps users find optimal structures for mechanical engineering problems. It offers a platform to solve classic and new challenges in the field.

**Highlights:** Optimize structures, Solve engineering problems, Classic and new challenges, Mechanical engineering focus

**Features:** macOS Compatibility

**In-app purchases:** none


### Astable

[App page](https://appshunter.io/ios/app/astable-structural-mechanics/id1665840344)

This application provides a powerful structural mechanics solver with a graphic editor, code editor, and workspace. It allows for detailed mechanics parameter settings and offers a rich theme color scheme, making it ideal for large screen devices.

**Highlights:** Graphic editor, Code editor, Workspace, Mechanics parameter settings, Rich theme color scheme, Large screen device optimized

**In-app purchases:** none


## Frequently asked questions

### Is TopOpt Game free?

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

### Is Astable free?

Astable costs $4.99, with no in-app purchases.

### Do TopOpt Game or Astable have ads?

Neither TopOpt Game nor Astable shows ads.

### Which is updated more often, TopOpt Game or Astable?

TopOpt Game ships an update every 3 months, and Astable every 2 weeks. Most recently, TopOpt Game was updated on June 1, 2026 and Astable on July 8, 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.*