This category is for sites primarily focused on the use and/or distribution of computer software for Sudoku. Such software could...

• Create puzzles for the user to solve, either directly or after exporting/printing
• Solve puzzles from other sources
• Provide clues/hints for the user to solve a puzzle they are struggling with

...or any combination. Online (browser-based) applications will be found in Games: Video Games: Puzzle: Browser Based: Sudoku.