Built because of an argument about whose serve it was

Every rec player knows the moment. Side out, your ball, and four adults stand on a court genuinely unsure who serves and from which side. Someone says "even score, right side." Someone else says that's not how it works after a side out. Both are half right, the game stalls, and the people waiting on the fence sigh.

Dillball started there. Not as a counter — counting was never the hard part — but as the friend who actually knows the rotation: who serves, from which side, and why, on every single rally. We went to the rulebook, modeled the rotation properly (including the side-out rule that trips up almost every app and half the guides on the internet), and wrapped it in a scoreboard you can run with two sweaty taps between rallies.

What we believe

No accounts, ever. You should be able to open an app and keep score. Your match history syncs through your own iCloud, not our servers — we don't have servers.

Offline is the baseline. Courts live in parks and gym basements. Everything works in airplane mode: scoring, stats, the round robin organizer, all of it.

Privacy isn't a feature tier. No tracking, no ads, no data sale, no third-party analytics. The App Store label reads "Data Not Collected" and we intend to keep it that way.

Teach, don't just track. Every call comes with a plain-language why. The app should make your group better at the rotation, not dependent on a screen.

Where it's at

Dillball launches on iPhone and Apple Watch in 2026. While we finish it, everything on this site is real and free: the live scoring demo runs the app's actual engine, the round robin generator organizes your open play today, and the guides answer the questions that stall games. You can follow the build on the changelog.

Dillball is made by Handler Labs LLC — by players, for players.