What do I get if I donate?
Your donation supports continued development and upkeep of Sudoku Spoiler. As a thank-you, ads are removed on your device for 30 days.
How it works
Your ad-free status is saved in your browser (or app, if installed) and expires automatically after 30 days. No account, no login.
Stacking
Donating again while you are already ad-free adds another 30 days to your current expiry.
Restoring ad-free status
PayPal gives you a transaction ID after each donation. Paste your most recent transaction ID into the restore field on the donate page to unlock the same ad-free period on current device. Older transaction IDs only restore up to their own original expiry.
Privacy
We only store the PayPal transaction ID and the expiry date. No name, email, or payment details — PayPal handles all of that.