# Physical Changes in Matter vs Trove

The clearest difference is in-app purchases: Physical Changes in Matter at none against Trove's 3. Physical Changes in Matter also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Trove sells 3 one-off in-app purchases. Physical Changes in Matter asks for nothing beyond the download.

## The numbers

| Metric | Physical Changes in Matter | Trove |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 30 MB | 46 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Science Education Institute](https://appshunter.io/developer/1439710468) | [imlab](https://appshunter.io/developer/1523863615) |

## What reviewers say

### Physical Changes in Matter

[App page](https://appshunter.io/ios/app/physical-changes-in-matter/id6514314103)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trove

[App page](https://appshunter.io/ios/app/trove-periodic-elements/id6756610725)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee (Small) | $1.99 | one-time |
| Buy Me a Coffee (Medium) | $4.99 | one-time |
| Buy Me a Coffee (Large) | $9.99 | one-time |


## Frequently asked questions

### Is Physical Changes in Matter free?

Physical Changes in Matter is free to download, with no in-app purchases.

### Is Trove free?

Trove is free to download, with in-app purchases available.

### Do Physical Changes in Matter or Trove have ads?

Neither Physical Changes in Matter nor Trove shows ads.

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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.*