# Saidoku — Sudoku Flow — A color-dyeing sudoku puzzle

> A color-dyeing sudoku puzzle (iPhone/iPad app by Jun Konishi.)

- Source: https://appshunter.io/ios/app/saidoku-sudoku-flow/id6821270956 (this page in markdown: same URL + `.md`)
- Developer: [Jun Konishi](https://appshunter.io/developer/6805749950)
- Category: Games, Board, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 23 MB
- Languages: Japanese
- Released: 2026-10-12
- Data updated: 2026-10-24

## What is Saidoku?

Saidoku ("color sudoku") is a logic puzzle where sudoku and color-making become one.

Step into a traditional Japanese dye workshop. Solve the sudoku on the board, and colored water flows out of each tank by the amount of the number in its cell. Guide the water with sluice gates, rotating channels and holding vats into the dye pots, then fill the receiving jar with exactly the mix your customer ordered. Every color you finish, from madder red and golden yellow to indigo and young bamboo green, joins your swatch book of traditional Japanese colors.

HOW TO PLAY
- Tap a cell and a little craftsman walks over beside it. Pick a number and he smashes the stone slab with his hammer to reveal it.
- The number in a tank cell is how much colored water that tank holds. The sudoku answer and the color recipe give each other clues.
- Red + yellow = orange, yellow + blue = green, blue + red = purple. Add white for softer tones. Each color keeps its amount when mixed, and orders are judged by amount.
- In ratio orders, work out each color's amount from the ratio and the total.
- Release the water as many times as you like with no penalty. Earn three stars: Dyed, No Waste and No Hints.

500 ORDERS, 5 SEASONS
Five chapters: Spring Cherry Blossom Workshop, Early Summer Mixing Orders, Summer Indigo Workshop, Autumn Maple Workshop and Winter Snow Workshop, with 500 orders in all. Orders open one at a time, and every block of five adds new mechanics and a little more challenge. Finish a whole chapter to unlock the next season. Every order is verified to have a single answer that can be reached by logic alone.

FEATURES
- Atmospheric chapter screens with ink-wash mountains and drifting seasonal petals, rain, fireflies, leaves and snow
- Three-step hints: where to look, which rule to use, and the next move
- Seven music tracks with a Japanese feel, plus sound effects
- Switch between Japanese and English
- For iPhone and iPad

ABOUT ADS
Saidoku is free to play and shows ads: a banner on menu screens, a full-screen ad after every five orders (watching it opens the next five), and a video ad to replay an order you have already finished. No ads appear while you are solving a puzzle.

## Is Saidoku safe?

Not enough ratings yet to assess Saidoku.

## Is Saidoku legit?

Saidoku — Sudoku Flow appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Saidoku is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-14

Minor improvements.

### 1.0 — 2026-10-12

No release notes.

## More apps by Jun Konishi

- [CamperNav](https://appshunter.io/ios/app/campernav/id6805749948)
- [Cocktail Time! Color Puzzle](https://appshunter.io/ios/app/cocktail-time-color-puzzle/id6819983699)
- [CAPLUS GALAXY](https://appshunter.io/ios/app/caplus-galaxy/id6820082236)
- [CamperNav Go](https://appshunter.io/ios/app/campernav-go/id6821808305)
- [Stack 'n Pack: Cargo 3D](https://appshunter.io/ios/app/stack-n-pack-cargo-3d/id6823098422)

All apps by Jun Konishi: https://appshunter.io/developer/6805749950

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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 2026-10-24.*