# TestAce vs Science Simulations

The clearest difference is price: Science Simulations at Free against TestAce's $0.99. TestAce's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (15.2 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Science Simulations is free to download; TestAce costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TestAce ships an update every 5 days, Science Simulations every 2 months. The most recent releases landed on September 22, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | TestAce | Science Simulations |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/science-simulations/id6744251352/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | — | Free |
| Size | 1 MB | 164 MB |
| Requires iOS | **15.2** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [John Zalubski](https://appshunter.io/developer/1137266152) | [Wikimedia CH](https://appshunter.io/developer/997079562) |

## What reviewers say

### TestAce

[App page](https://appshunter.io/ios/app/testace/id6463802544)

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

**In-app purchases:** none


### Science Simulations

[App page](https://appshunter.io/ios/app/science-simulations/id6744251352)

Explore over 150 interactive chemistry and physics simulations to understand complex science concepts. This app offers an intuitive, game-like environment for learning at home or in the classroom, with offline access to educational resources.

**Highlights:** 150+ interactive simulations, Chemistry and physics concepts, Classroom and home use, Offline access, Game-like learning environment, Creative Commons licensed content

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TestAce free?

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

### Is Science Simulations free?

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

### Do TestAce or Science Simulations have ads?

Neither TestAce nor Science Simulations shows ads.

### Which is updated more often, TestAce or Science Simulations?

TestAce ships an update every 5 days, and Science Simulations every 2 months. Most recently, TestAce was updated on September 22, 2026 and Science Simulations on October 12, 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.*