Nonograms Katana APK for Android

Looking for a relaxing logic puzzle you can play anywhere? This page offers the Nonograms Katana APK download for Android, the latest version 15.3 of the popular nonogram game by ucdevs. Also known as Japanese crosswords, these puzzles turn number clues into pixel pictures, and the game works without an internet connection.

What Is Nonograms Katana and How Does It Play?

Each puzzle is a grid with numbers along its rows and columns. The numbers tell you how many consecutive cells must be filled in that line. Using pure deduction, you work out which cells to color until the hidden image appears.

There are no on-screen buttons to learn: you simply tap and drag on the grid. The game has passed one million installs on Google Play and holds a 4.7 out of 5 rating from over 100,000 reviews.

Puzzle Modes and Content

Nonograms Katana splits its puzzles into two collections:

• Black and white: classic nonograms where each cell is either filled or empty.
• Color: an extra layer of challenge, as every clue must be matched to its correct color.

Both collections include a large number of pictures across different grid sizes, from small beginner boards to large grids that demand patience and focus. The game is free to play, with optional in-app purchases.

Requirements and Installing the APK

The game runs on Android 4.4 or newer, and the download is lightweight at around 9 MB, so it fits easily on almost any phone.

The file is a standard APK, so no special installer is required. After downloading, allow installation from unknown sources in your device settings, open the file, tap Install, and start solving.