# Square and Circular vs Defender Merge

The clearest difference is in-app purchases: Square and Circular at none against Defender Merge's 9. Square and Circular also leads on ads (none vs shown). Defender Merge's advantage is update cadence (every 5 days vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Defender Merge sells 9 one-off in-app purchases. Square and Circular asks for nothing beyond the download.

Square and Circular ships an update every 9 months, Defender Merge every 5 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Square and Circular | Defender Merge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (12 ratings)](https://appshunter.io/ios/app/defender-merge/id6758917966/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 214 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [娟 杜](https://appshunter.io/developer/974748350) | [ANLOFT YAZILIM LIMITED SIRKETI](https://appshunter.io/developer/1626867365) |

## What reviewers say

### Square and Circular

[App page](https://appshunter.io/ios/app/square-and-circular/id1068916272)

**Features:** macOS Compatibility

**In-app purchases:** none


### Defender Merge

[App page](https://appshunter.io/ios/app/defender-merge/id6758917966)

Combine units to create powerful defenses and upgrade your base to withstand endless waves of enemies. Strategic merging and base upgrades are key to survival in this challenging defense game.

**Highlights:** Merge units to unlock stronger defenders, Upgrade your base for better defenses, Face endless waves of increasingly difficult enemies, Strategic merge and upgrade decisions, Easy to play with satisfying merge mechanics, Progress through the game by upgrading and growing stronger

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond Pack 1 | $1.99 | one-time |
| No Ads | $3.99 | one-time |
| Diamond Pack 2 | $4.99 | one-time |
| Diamond Pack 3 | $8.99 | one-time |
| Diamond Pack 4 | $17.99 | one-time |
| Diamond Pack 5 | $24.99 | one-time |
| Diamond Pack 6 | $59.99 | one-time |
| Diamond Pack 7 | $79.99 | one-time |
| Mega Bundle | $99.99 | one-time |


## Frequently asked questions

### Is Square and Circular free?

Square and Circular is free to download, with no in-app purchases.

### Is Defender Merge free?

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

### Do Square and Circular or Defender Merge have ads?

Defender Merge shows ads; Square and Circular does not.

### Which is updated more often, Square and Circular or Defender Merge?

Square and Circular ships an update every 9 months, and Defender Merge every 5 days. Most recently, Square and Circular was updated on October 29, 2026 and Defender Merge on October 28, 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.*