# Cat Rush Fever vs Doku Blast!

The clearest difference is in-app purchases: Doku Blast! at none against Cat Rush Fever's 10. Doku Blast! also leads on update cadence (every 5 days vs monthly). Cat Rush Fever's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Cat Rush Fever sells 10 one-off in-app purchases. Doku Blast! asks for nothing beyond the download.

Cat Rush Fever ships an update monthly, Doku Blast! every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cat Rush Fever | Doku Blast! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (12 ratings)](https://appshunter.io/ios/app/doku-blast/id6785128983/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 81.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | — | Ad-supported |
| Size | 170 MB | 162 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GLASIR SOFTWARE LLC](https://appshunter.io/developer/1816027694) | [WISDOM INTERACTIVE YAZILIM TICARET ANONIM SIRKETI](https://appshunter.io/developer/6785128985) |

## What reviewers say

### Cat Rush Fever

[App page](https://appshunter.io/ios/app/cat-rush-fever/id6757496044)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin 500 | $0.99 | one-time |
| Life x30 | $0.99 | one-time |
| Starter Pack | $1.99 | one-time |
| Coin 2000 | $1.99 | one-time |
| Life x60 | $1.99 | one-time |
| Coin 5000 | $2.99 | one-time |
| Life x90 | $2.99 | one-time |
| Coin 10000 | $3.99 | one-time |
| Life 1h | $3.99 | one-time |
| Remove Ad | $14.99 | one-time |


### Doku Blast!

[App page](https://appshunter.io/ios/app/doku-blast/id6785128983)

Engage in a vibrant number puzzle game with Sudoku-inspired mechanics. Place blocks strategically to complete boxes and clear the board for higher scores. Enjoy daily challenges and a relaxing, casual brain training experience.

**Highlights:** Colorful Sudoku-inspired gameplay, Simple rules with satisfying strategy, Fun levels and daily challenges, Helpful hints and power-ups, Relaxing, casual puzzle experience, Great for quick sessions

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

**In-app purchases:** none


## Frequently asked questions

### Is Cat Rush Fever free?

Cat Rush Fever is free to download, with in-app purchases available.

### Is Doku Blast! free?

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

### Do Cat Rush Fever or Doku Blast! have ads?

Both Cat Rush Fever and Doku Blast! show ads.

### Which is updated more often, Cat Rush Fever or Doku Blast!?

Cat Rush Fever ships an update monthly, and Doku Blast! every 5 days. Most recently, Cat Rush Fever was updated on November 5, 2026 and Doku Blast! on October 31, 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.*