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 — 30 days for $3, or 90 days for $5.
How it works
Your ad-free status is saved in your browser (or app, if installed) and expires automatically when the period ends. No account, no login. Donating again while you are already ad-free adds the new tier's days to your current expiry.
Restoring ad-free status
After you donate, your transaction ID is shown on the donate page — copy and save it. To restore the same ad-free period on another device, or on this one after clearing your browser data, paste that ID into the restore field on the donate page. 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.