Privacy
What this site stores
Shuffle Up and Play needs no account. When you create or join a table the site sets one cookie that identifies your seat. It holds a random identifier and nothing else.
A table holds the name you type, the deck you load, and the position of your cards. That data stays until the table is removed.
What this site does not do
The site runs no advertising, no analytics and no third-party trackers. It never sells data. Visiting the home page sets no cookie.
Other services
Deck search reads the public Archidekt API. Card images come from Scryfall. Your browser requests those images directly, so those services can see the request.