Your bowling stays on your phone.

Plain-language summary of what BowlEye does with your data. Last updated 7 October 2026.

The app

• Camera and video. BowlEye uses the camera to record your shots. Videos, shots, sessions, targets and stats are stored on your phone.
• Shot analysis is on-device. Tracking the ball, measuring the numbers, reading rev rate and suggesting pins all run on the phone.
• Lane detection is on-device too. Finding your lane during setup runs on the phone; no picture leaves it.
• Optional cloud options (off by default). Advanced settings offer a “Cloud” lane detector and a “Cloud” ball detector that use your own Roboflow account and API key. Both are off unless you choose them and enter a key; if you do, a still frame at lane setup (lane detector) or frames from your shots (ball detector) are sent to Roboflow under your account.
• No accounts, no ads, no analytics. BowlEye does not require an account and does not include advertising or analytics SDKs.

The Ballroom (optional)

If you connect The Ballroom with a code from your Ballroom account, BowlEye reads what you allow — your arsenal (with layouts), oil patterns, release profile and related locker data — and stores a copy on your phone. If you turn on practice sync, summaries of your practice sessions are sent back to The Ballroom. Disconnecting stops both. The Ballroom's own privacy policy covers data held there.

Sharing

Shot and session cards are only shared when you share them, through your phone's share sheet, to the app you pick.

This website

bowleye.app has no cookies, tracking or analytics. Fonts are loaded from Google Fonts, so Google receives your browser's standard request (including your IP address). The site is hosted on Vercel, which keeps standard server logs. If you email us for early access, we use your address only to reply and send your invite.

Questions

Email dwillms2@gmail.com. If this summary changes, the date at the top changes with it.