Frequently asked questions

Is GridDay free?

Yes. Every game is free to play in your browser, and the app is free to download.

Do I need an account?

No. The app keeps your stats and streaks locally on your device — there is no sign-up and nothing leaves your device unless you choose.

Which games are included?

Sudoku, Killer Sudoku, Kakuro, Calcudoku, and Futoshiki, with more planned.

Does online play save my progress?

Online play is for quick, casual games and does not save stats. Get the app for daily challenges, stats, streaks, and achievements.

Why are there ads?

Ads appear only on the Online Play page and keep it free. The rest of the site is ad-free.

What platforms is the app on?

iOS and Android (coming soon). Meanwhile, you can play free in any modern browser.