Report an ad
Kerfline shows ads from Google AdMob. If you saw an ad that was offensive, misleading, malicious, or otherwise inappropriate, email support@mnabulsi.io with the subject "Report an ad." Include what the ad was for, roughly when you saw it, and a screenshot if you have one — that's usually enough to find and block it. This is also where the in-game Report an ad row in Settings sends you.
Get in touch
Email support@mnabulsi.io for bug reports, a level that seems genuinely impossible, or anything else. I read everything and aim to reply within a few days.
The leaderboard
Your leaderboard entry uses a display name, which you can change any time from Settings — no account or sign-in required. Rank is by fewest deaths on a level, not fastest time.
If you see a display name on the board that's offensive or inappropriate, email support@mnabulsi.io with the name and I'll deal with it.
Ads and privacy choices
The first time Kerfline is about to show an ad it asks what the ads may know about you. Where your region gives you the right to change that answer, Settings carries a Privacy options row that reopens the same form. On iPhone the system's tracking prompt appears once as well; declining it changes nothing about the game.
Deleting your data
Settings → Delete my data permanently erases your player identity, your leaderboard entries and every attempt recorded against you from the server — no email needed. Full instructions and exactly what is removed, or see the privacy policy for everything Kerfline collects.