# Investigation Declaration vs Science Simulations

The clearest difference is iOS requirement: Investigation Declaration at 12.0 against Science Simulations's 17.6. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 15, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Investigation Declaration | Science Simulations |
| --- | --- | --- |
| Price | Free | 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 3 months | Every 3 months |
| Monetization | — | Free |
| Size | 351 MB | 164 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [iCivics, Inc.](https://appshunter.io/developer/915103251) | [Wikimedia CH](https://appshunter.io/developer/997079562) |

## What reviewers say

### Investigation Declaration

[App page](https://appshunter.io/ios/app/investigation-declaration/id6743125653)

**Features:** macOS Compatibility

**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 Investigation Declaration free?

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

### Is Science Simulations free?

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

### Do Investigation Declaration or Science Simulations have ads?

Neither Investigation Declaration nor Science Simulations shows ads.

### Which is updated more often, Investigation Declaration or Science Simulations?

Investigation Declaration ships an update every 3 months, and Science Simulations every 3 months. Most recently, Investigation Declaration was updated on September 15, 2026 and Science Simulations on September 26, 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.*