# Block Puzzle vs Ultimate Sudoku App

The clearest difference is in-app purchases: Ultimate Sudoku App at none against Block Puzzle's 1. Ultimate Sudoku App also leads on ads (none vs shown). Block Puzzle's advantage is iOS requirement (13.0 vs 16.4). On price, update cadence and device support there is nothing between them.

Both are free to download. Block Puzzle sells 1 one-off in-app purchase. Ultimate Sudoku App asks for nothing beyond the download.

Block Puzzle ships an update every 10 days, Ultimate Sudoku App every 6 days. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Block Puzzle | Ultimate Sudoku App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 40 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Nemtsou](https://appshunter.io/developer/1612416096) | [Michele Yin](https://appshunter.io/developer/1802479962) |

## What reviewers say

### Block Puzzle

[App page](https://appshunter.io/ios/app/block-puzzle-bubble-flow/id1498356316)

This logic puzzle game challenges you to strategically place falling shapes to fill rows and columns. Earn points by clearing lines, with bonuses for clearing multiple rows simultaneously. It's designed to enhance spatial reasoning and forward planning skills.

**Highlights:** Strategic block placement, Row and column clearing, Scoring and bonuses, Spatial thinking development, No shape rotation, Offline play

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### Ultimate Sudoku App

[App page](https://appshunter.io/ios/app/ultimate-sudoku-app/id6743371040)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Block Puzzle free?

Block Puzzle is free to download, with in-app purchases available.

### Is Ultimate Sudoku App free?

Ultimate Sudoku App is free to download, with no in-app purchases.

### Do Block Puzzle or Ultimate Sudoku App have ads?

Block Puzzle shows ads; Ultimate Sudoku App does not.

### Which is updated more often, Block Puzzle or Ultimate Sudoku App?

Block Puzzle ships an update every 10 days, and Ultimate Sudoku App every 6 days. Most recently, Block Puzzle was updated on October 22, 2026 and Ultimate Sudoku App on October 25, 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.*