# Frozen Blocks Unblock vs Kurotto Extreme

The clearest difference is in-app purchases: Kurotto Extreme at none against Frozen Blocks Unblock's 4. Frozen Blocks Unblock's advantage is update cadence (every 2 months vs every 22 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Frozen Blocks Unblock sells 4 one-off in-app purchases. Kurotto Extreme asks for nothing beyond the download.

Frozen Blocks Unblock ships an update every 2 months, Kurotto Extreme every 22 months. The most recent releases landed on September 13, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Frozen Blocks Unblock | Kurotto Extreme |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kurotto-extreme/id1499171663/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 22 months |
| Monetization | — | Ad-supported |
| Size | 51 MB | 22 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Swapna Puramsetty](https://appshunter.io/developer/1250456369) | [Christophe Baranger](https://appshunter.io/developer/982794089) |

## What reviewers say

### Frozen Blocks Unblock

[App page](https://appshunter.io/ios/app/frozen-blocks-unblock/id1262751754)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Package | $1.99 | one-time |
| Medium Package | $1.99 | one-time |
| Expert Package | $1.99 | one-time |
| Ultra Package | $1.99 | one-time |


### Kurotto Extreme

[App page](https://appshunter.io/ios/app/kurotto-extreme/id1499171663)

A logic puzzle game originating from Japan with simple rules for hours of engaging challenges. Fill empty cells based on numbered circles indicating continuous black cells, with no time limits and autosave functionality.

**Highlights:** 350+ challenges across 7 difficulty levels, 7 new daily challenges, Autosave progress, No time limits, 2 global leaderboards, Full tutorial

**In-app purchases:** none


## Frequently asked questions

### Is Frozen Blocks Unblock free?

Frozen Blocks Unblock is free to download, with in-app purchases available.

### Is Kurotto Extreme free?

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

### Do Frozen Blocks Unblock or Kurotto Extreme have ads?

Both Frozen Blocks Unblock and Kurotto Extreme show ads.

### Which is updated more often, Frozen Blocks Unblock or Kurotto Extreme?

Frozen Blocks Unblock ships an update every 2 months, and Kurotto Extreme every 22 months. Most recently, Frozen Blocks Unblock was updated on September 13, 2026 and Kurotto Extreme on June 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.*