# Round Defense vs CrystalReactor

The clearest difference is in-app purchases: CrystalReactor at none against Round Defense's 1. CrystalReactor also leads on device support. On price and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Round Defense | CrystalReactor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/round-defense/id6769850935/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Monetization | Free | — |
| Size | 34 MB | 16 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | — | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [OMER FARUK SEN](https://appshunter.io/developer/1896693336) | [Bohdan Kalinichenko](https://appshunter.io/developer/6791440431) |

## What reviewers say

### Round Defense

[App page](https://appshunter.io/ios/app/round-defense/id6769850935)

Engage in a vibrant 2D tower defense game where you strategically place and upgrade defenses to stop waves of enemies. Each round presents new challenges, encouraging smarter choices and longer survival. Designed for quick, fun play sessions, it's easy to learn but offers deep replayability.

**Highlights:** 2D tower defense gameplay, Colorful cartoon-style visuals, Increasingly challenging enemy waves, Strategic tower placement, Upgrade-based progression, Simple controls and clean UI

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### CrystalReactor

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

**In-app purchases:** none


## Frequently asked questions

### Is Round Defense free?

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

### Is CrystalReactor free?

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

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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.*