# Root Sudoku — All must be perfect squares!

> All must be perfect squares! (iPhone/iPad app by SHUNYA IHIRA.)

- Source: https://appshunter.io/ios/app/root-sudoku/id6748306187 (this page in markdown: same URL + `.md`)
- Developer: [SHUNYA IHIRA](https://appshunter.io/developer/1825096762)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 47 MB
- Languages: English, Japanese, Chinese
- Released: 2025-07-18
- Data updated: 2026-08-07
- User reviews in markdown: https://appshunter.io/ios/app/root-sudoku/id6748306187/reviews.md

## What is Root Sudoku?

Root Sudoku is a fresh and innovative puzzle game that blends classic Sudoku rules with the logic of perfect squares.

In addition to the standard rule — no duplicate numbers in any row, column, or 3×3 block — three unique "√ rules" bring an extra layer of depth:

Red frames: When the digits are joined together, they must form a perfect square
Blue frames: The sum of the digits must be a perfect square
Green frames: The product of the digits must be a perfect square

These special rules challenge your logical thinking like never before.
Each puzzle features its own intricate combination of frames, requiring a mix of calculation and deduction.

If you're tired of ordinary Sudoku, Root Sudoku is the brain game for you.
With built-in error checking and a smart calculator tool, solving has never been smoother.

Can you unravel every rule and conquer the grid?

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Feature | $2.99 | one-time |



## Version history (last 5 releases)

### 1.2.0 — 2025-08-29

Added "Expert Mode" for those who want to take on a higher difficulty!
Also fixed some minor bugs.

### 1.1.1 — 2025-08-18

This update includes bug fixes and performance improvements.

### 1.1.0 — 2025-08-13

We have significantly improved the issue where multiple solution patterns could occur.
Some adjustments were made to the behavior of controls during gameplay.

### 1.0.2 — 2025-07-19

Bug fix.

### 1.0.1 — 2025-07-18

Bug Fix.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-07.*