# CrystalReactor vs SoulStack

The clearest difference is in-app purchases: CrystalReactor at none against SoulStack's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SoulStack sells 1 one-off in-app purchase. CrystalReactor asks for nothing beyond the download.

## The numbers

| Metric | CrystalReactor | SoulStack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 16 MB | 49 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Bohdan Kalinichenko](https://appshunter.io/developer/6791440431) | [Xdge Technologies LLC](https://appshunter.io/developer/6792952936) |

## What reviewers say

### CrystalReactor

[App page](https://appshunter.io/ios/app/crystalreactor/id6791440429)

**In-app purchases:** none


### SoulStack

[App page](https://appshunter.io/ios/app/soulstack/id6792952934)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Soulstack: Full Game | $6.99 | one-time |


## Frequently asked questions

### Is CrystalReactor free?

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

### Is SoulStack free?

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

### Do CrystalReactor or SoulStack have ads?

Neither CrystalReactor nor SoulStack 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.*