Keep score without the confusion.

No. Dillball opens straight to scoring. There is no sign-up, no DUPR ID, and nothing to remember. Your data lives on your device and syncs through your own iCloud.

Yes. Everything works with no signal, which matters on a court in the back of a park. Scoring, stats, and the round robin generator all run on device.

Dillball tracks who serves, from which side, the server number, and the side-outs, then shows a plain-language line like "Sam serves from the right" with a short why. It handles the part that trips up almost every new doubles player.

The scorekeeper, Apple Watch scoring, saved and logged matches, social doubles for four players, your first full match report, the rotation trainer, and the full rules guide are free forever. Premium adds the match report on every game, personal stats, open play for the whole gym (round robin, king of the court, the river, brackets, and playoffs for up to 24 players), a shareable schedule, the TV scoreboard, guided drills, groups with all-time standings, and CSV export.

Dillball watches every rally, so a saved match can tell you more than the final score: how many points each side won on serve and on return, how they did from the right court versus the left, who put the closing points away, the longest run, the biggest lead, and the exact score the game turned on — including whether it was wire to wire or a comeback.

Yes. Add the players and Dillball builds the matchups, rotates partners for social doubles, handles odd numbers with fair byes, times the rounds, and keeps the standings. It also runs king of the court, up and down the river, a single-elimination bracket with a third-place game, and playoffs seeded from the standings when you want a winner at the end. Someone arrives late or leaves early? The rounds still to play are redrawn without touching the ones already scored. Tag skill levels and it balances the courts too, and the schedule goes to the group chat as a picture or a text. A foursome is free; one organizer pays for the whole gym and nobody else installs anything or signs up.

Yes. There is no account and no server of ours storing your data. Dillball collects nothing, shows no ads, and never sells data. The App Store privacy label is "Data Not Collected."

Yes. Everything syncs through your own iCloud, you can export matches to CSV, and a free one-tap backup saves your entire history — every rally included — as a single file you can restore on any iPhone.