Bowling Score Keeper with Season Stats

Each of the ten frames records up to two balls; open frames score the pins knocked down, a spare adds the next ball as a bonus, and a strike adds the next two balls. The chained bonuses are what make manual scoring error-prone. Pinline does the chaining for you — you tap the pins that fell, and the engine fills in every running total.

The 10th frame is special: a strike or spare there earns bonus balls, so it can hold up to three throws, and marks in it are counted differently from other frames. This is where scoring apps most often get the math wrong. Pinline's engine is unit-tested against every 10th-frame case — three strikes, strike-then-spare, spare-then-strike — so a 300 game reads 300.

Divide your total pinfall by the number of games bowled — a 480 series over three games is a 160 average. Pinline maintains this continuously across the season and shows it with a sparkline of your last ten games, so you always know where you stand without a calculator.

Yes. Pinline is built exactly for house leagues and older centers where you keep score yourself. It works fully offline at the approach, marks a ball in a couple of taps, and needs no connection to the center's hardware — it is entirely independent of the alley.

Yes. Pinline supports several named bowlers in a single session — each gets their own scorecard, and a switcher moves between them as the rotation goes. Every bowler's games also accumulate into their own season stats.

Yes, any frame in any game. Open the frame editor, tap the correct pins on the deck, and all downstream totals recompute instantly. A fumbled entry in frame 3 never has to stand for the rest of the night.

In Pinline you flag a game as junk and it is excluded from your season average and stats while staying in the history. Warm-ups, no-tap games, and coaching drills stop poisoning your real number.

League bowlers often convert somewhere around half to two-thirds of their spare attempts, and single-pin spares are the ones you are expected to make. Pinline tracks both your overall spare percentage and your single-pin save rate separately, so you can see whether missed 10-pins or splits are what is holding your average down.

An X is a strike — all ten pins on the first ball — and a slash is a spare, meaning the second ball cleared what the first left. A dash marks a miss. Pinline uses the classic notation on its scorecard, so the sheet reads exactly like the league sheets bowlers already know.

A clean game is one with a mark — strike or spare — in every frame, no opens. It is a common milestone between casual and serious bowling. Pinline counts your clean games as a season stat, so you know how often you run the card.

Yes. Pinline exports games and seasons as CSV, which opens in any spreadsheet app. League secretaries get a clean sheet, and your full frame-by-frame history is never locked inside the app.

Pinline needs neither. There is no sign-up and no login; all scoring and stats run on-device and work with no signal, which matters in concrete-walled bowling centers. Your data stays on your phone unless you export it.