You're in this app's browser, which can't save Headpin to your home screen. Tap the menu (···) and choose Open in browser, then add it from Safari or Chrome.

The best way to keep score.

Free. Works offline.

Score every shot.

Tap the pins left standing. Add the ball and your boards if you want to.

A Headpin scorecard on the tenth frame, with the pins left standing and the stance and target boards written down beside it.

Remember every line you threw.

Your line over the oil pattern. Drag it to try a move.

The Headpin lane view, with a ball path from the laydown through the target arrows to the breakpoint and into the pocket, drawn over an oil pattern.

See a layout before you drill it.

Dual angle and Storm VLS, drawn on the ball from your PAP.

The Headpin layouts screen with a drilled ball showing the pin, the PAP and the drilling and VAL angles.

Know what's working.

Average, strike and spare rates, and how each ball carries.

The Headpin stats screen with the average, high and low, a chart of average by session, first-ball pocket, carry and strike rates, and spares made by leave.

Install

Put it on your home screen.

iPhone

Open headpin.app in Safari.
Tap Share, the square with the arrow.
Tap Add to Home Screen.

Android

Open headpin.app in Chrome.
Tap Install when it asks, or the menu (⋮).
Tap Add to Home screen.

Try it at your next league night.