# FillBlock vs Cat Blast

The clearest difference is ads: FillBlock at none against Cat Blast's shown. Cat Blast's advantage is update cadence (every 6 days vs every 10 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

FillBlock ships an update every 10 months, Cat Blast every 6 days. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | FillBlock | Cat Blast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 6 days** |
| Size | 60 MB | 86 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kazumasa fujihara](https://appshunter.io/developer/1516573304) | [ColorCanvas Kids](https://appshunter.io/developer/1896474592) |

## What reviewers say

### FillBlock

[App page](https://appshunter.io/ios/app/fillblock/id1533974241)

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

**In-app purchases:** none


### Cat Blast

[App page](https://appshunter.io/ios/app/cat-blast-block-puzzle/id6796220855)

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

**In-app purchases:** none


## Frequently asked questions

### Is FillBlock free?

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

### Is Cat Blast free?

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

### Do FillBlock or Cat Blast have ads?

Cat Blast shows ads; FillBlock does not.

### Which is updated more often, FillBlock or Cat Blast?

FillBlock ships an update every 10 months, and Cat Blast every 6 days. Most recently, FillBlock was updated on October 25, 2026 and Cat Blast on October 12, 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.*