# RD Grid Genius vs Arcalis

The clearest difference is in-app purchases: RD Grid Genius at none against Arcalis's 2. RD Grid Genius also leads on ads (none vs shown). Arcalis's advantage is iOS requirement (16.4 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Arcalis sells 2 one-off in-app purchases. RD Grid Genius asks for nothing beyond the download.

## The numbers

| Metric | RD Grid Genius | Arcalis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 days |
| Size | 8 MB | 52 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Raghul S](https://appshunter.io/developer/1344469407) | [ismail Ozturk](https://appshunter.io/developer/1896659375) |

## What reviewers say

### RD Grid Genius

[App page](https://appshunter.io/ios/app/rd-grid-genius/id6760827839)

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

**In-app purchases:** none


### Arcalis

[App page](https://appshunter.io/ios/app/arcalis-tower-defense/id6792473256)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold Hoard | $5.99 | one-time |
| 2x Battle Speed | $5.99 | one-time |


## Frequently asked questions

### Is RD Grid Genius free?

RD Grid Genius is free to download, with no in-app purchases.

### Is Arcalis free?

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

### Do RD Grid Genius or Arcalis have ads?

Arcalis shows ads; RD Grid Genius does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*