# Color Theorem! vs Cube Fillz!

Color Theorem! and Cube Fillz! are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Color Theorem! ships an update monthly, Cube Fillz! every 5 weeks. Both last shipped on October 10, 2026.

## The numbers

| Metric | Color Theorem! | Cube Fillz! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 118 MB | 121 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Serenico Labs](https://appshunter.io/developer/1631801659) | [一雄 胡](https://appshunter.io/developer/1370815535) |

## What reviewers say

### Color Theorem!

[App page](https://appshunter.io/ios/app/color-theorem/id1659995009)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cube Fillz!

[App page](https://appshunter.io/ios/app/cube-fillz/id6743929574)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Color Theorem! free?

Color Theorem! is free to download, with no in-app purchases.

### Is Cube Fillz! free?

Cube Fillz! is free to download, with no in-app purchases.

### Do Color Theorem! or Cube Fillz! have ads?

Both Color Theorem! and Cube Fillz! show ads.

### Which is updated more often, Color Theorem! or Cube Fillz!?

Color Theorem! ships an update monthly, and Cube Fillz! every 5 weeks. Most recently, Color Theorem! was updated on October 10, 2026 and Cube Fillz! on October 10, 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.*