# K.O. Flip - Light up — Puzzle Solver - Black&White

> Puzzle Solver - Black&White (iPhone/iPad app by 又瑞 韦.)

- Source: https://appshunter.io/ios/app/ko-flip/id1627027420 (this page in markdown: same URL + `.md`)
- Developer: [又瑞 韦](https://appshunter.io/developer/1625836878)
- Category: Education, Entertainment
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 57 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2022-06-01
- Data updated: 2026-03-20
- User reviews in markdown: https://appshunter.io/ios/app/ko-flip/id1627027420/reviews.md

## What is K.O. Flip?

Get Flip (Light up / Black & White) solution / solving steps immediately. 
It supports 3x3, 4x4, 5x5, 6x6, 7x7, 8x8 puzzle. 
The abundant puzzle store is waiting for you to play.
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In the grid of N rows x N columns, click any square, the square and its up/down/left/right(if exist) squares will undergo black-and-white color conversion. When the initial pattern is converted to the target pattern, the puzzle is solved.


## Version history (last 5 releases)

### 2.1.0 — 2026-03-18

Switch server

### 2.0.2 — 2025-11-01

Optimize dark mode

### 2.0.1 — 2025-10-27

Fix issue in game page

### 2.0.0 — 2025-10-09

Update framework

### 1.2.8 — 2025-05-12

Fix issue

## Apps similar to K.O. Flip

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Grid Hero - Logic Puzzles](https://appshunter.io/ios/app/grid-hero/id6474739003) | 5.0 (2) | Free | Education |
| [Mini Cross Sum](https://appshunter.io/ios/app/mini-cross-sum/id1514735753) | — | Free | Education |
| [iMagicSquare](https://appshunter.io/ios/app/imagicsquare/id792626327) | — | Free | Education |
| [Sudoku Baron](https://appshunter.io/ios/app/sudoku-baron/id1250038560) | — | Free | Education |
| [Relay Flip:One Stroke of Color](https://appshunter.io/ios/app/relay-flip/id1520989239) | — | Free | Education |
| [Maze - 17000 Maze Puzzles](https://appshunter.io/ios/app/maze/id1492674511) | — | Free | Education |

## More apps by 又瑞 韦

- [K.O. Sudoku - Sudoku Solver](https://appshunter.io/ios/app/ko-sudoku/id1625864447)
- [K.O. Nonogram](https://appshunter.io/ios/app/ko-nonogram/id1626831214)
- [K.O. Slitherlink](https://appshunter.io/ios/app/ko-slitherlink/id1629925581)
- [K.O. Sudoku Pro](https://appshunter.io/ios/app/ko-sudoku-pro/id6479217148)
- [K.O. Nonogram Pro](https://appshunter.io/ios/app/ko-nonogram-pro/id6737248261)

All apps by 又瑞 韦: https://appshunter.io/developer/1625836878

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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 2026-03-20.*