Ceedoku is a game made by Ceebug, it is a lightweight sudoku game designed to fit your needs. Ceedoku is open source and can run on basically anything.

• Fully installable, right from your browser
• Dark mode and light mode (Dark mode is default.)
• Auto Sudoku generation
• Works offline (After opening the installed version at least once with internet.)
• Multiple difficulties (Easy, Medium, Hard and Expert.)
• Hints (Currently restores the board rather than using solving techniques.)
• Timer
• Pencil mode
• Erase mode
• Game saving
• Theme preference saving (Pick between dark and light mode, then have the game remember which mode you picked and switch to it next time you open the app.)
• No ads
• Pause on lost focus (Your game will be paused if you minimize, close, or otherwise make the app not visible.)

Ceedoku is a website, not an app. However, this does not mean you cannot install Ceedoku. Below are all the ways you can access Ceedoku.
Whether it be using the website, Installing from an executable, or something else; rest assured: Ceedoku can run on anything.

Use the website

Install from executable

Install from browser

Look at the source code