# Shield Master 3D vs Circle Puzzle

The clearest difference is ads: Circle Puzzle at none against Shield Master 3D's shown. Shield Master 3D's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Shield Master 3D ships an update monthly, Circle Puzzle every 6 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Shield Master 3D | Circle Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 142 MB | 58 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [建涛 钟](https://appshunter.io/developer/1516809739) | [德瀚 陈](https://appshunter.io/developer/1886196575) |

## What reviewers say

### Shield Master 3D

[App page](https://appshunter.io/ios/app/shield-master-3d/id6758430872)

**Features:** macOS Compatibility

**In-app purchases:** none


### Circle Puzzle

[App page](https://appshunter.io/ios/app/circle-puzzle-chroma-rings/id6761169620)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shield Master 3D free?

Shield Master 3D is free to download, with no in-app purchases.

### Is Circle Puzzle free?

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

### Do Shield Master 3D or Circle Puzzle have ads?

Shield Master 3D shows ads; Circle Puzzle does not.

### Which is updated more often, Shield Master 3D or Circle Puzzle?

Shield Master 3D ships an update monthly, and Circle Puzzle every 6 weeks. Most recently, Shield Master 3D was updated on October 31, 2026 and Circle Puzzle on October 24, 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.*