Terms and Privacy
Last updated 1 September 2026
The short version. This is a free hobby project for counting drinks at the US Open. It shows ads to nobody, sells nothing, and doesn't sell your data. It stores the rounds you log, a handle you choose, and anything you post to the gallery or the board. The blood alcohol figure is a rough estimate and must never be used to decide whether you can drive.
You must be 21 or over
This site is intended for people of legal drinking age in the United States. We ask you to confirm that once; we don't ask for your date of birth or any identification, and we don't store anything beyond the fact that you said yes. If you're under 21, please don't use it.
The blood alcohol estimate
The BAC figure is produced by the Widmark formula from the weight you enter, the number of drinks you log, and the times you log them. It is a model, not a measurement. Real blood alcohol depends on food, hydration, medication, sex, liver function, absorption rate and much else the app can't know.
Never use this number to decide whether to drive, or to do anything else where being wrong matters. If you've been drinking, don't drive. The app is a toy; a breathalyzer is an instrument; neither is a licence.
What gets stored
On your device:
- Your handle, display name, theme, and optional body weight and price override
- Your logged rounds, so the app works offline
- Who you follow, and a note that you confirmed your age
On our database (hosted by Supabase, in the United States):
- Your handle and the rounds logged under it — date, time, count, venue
- Photos you upload to the gallery, and notes you pin to the board
- Teams you create or join, and gifts sent between handles
- An anonymous account identifier, created automatically so photos and handles can belong to someone
Your body weight and the resulting BAC figures stay on your device and are never sent to the database.
What's public
The leaderboard, teams, the board and the gallery are shared by everyone using the site. If you set a handle, your total, rank and most recent round are visible to other users. Notes you pin and photos you upload are visible to everyone. Don't post anything you wouldn't want seen — treat it like a group chat, not a diary.
Analytics and cookies
We use Google Analytics to count visits and understand which parts of the site get used. Google sets cookies on your device and may process your approximate location and device type. We don't use it for advertising, and we don't run ad networks or trackers beyond this. You can block it with any ad blocker or your browser's tracking protection, and the site works exactly the same.
Deleting your data
Setup → Clear log deletes your rounds from this device and from the database. To remove a photo, open it in the gallery and tap Delete. To remove a note, tap the × on it. If you'd like your handle and everything attached to it removed entirely, email the address below and we'll do it.
No warranty
This is provided as is, with no guarantees of accuracy, availability or fitness for anything. Prices, calorie figures and cup dimensions are best-effort estimates gathered from public sources. The site may lose data, break, or disappear. Don't rely on it for anything that matters.
Not affiliated with anyone
This is an independent hobby project. It is not affiliated with, endorsed by or connected to the USTA, the US Open, Grey Goose, Chambord, or any other trademark holder. All trademarks belong to their owners.
Contact
Questions, data deletion requests, or anything else: hello@deucetracker.com
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