The balance lives on the card
When you add a gift card, enter what is left on it. After you spend, update the balance. The number sits on the card instead of in a photo buried in a group chat.
Check with the retailer
CardWarden can open the retailer's own balance checker for supported stores, so you can confirm the amount before you rely on it. The checker is the store's page or flow, not a CardWarden estimate.
Shared cards stay on one number
On a pocket you have shared with Premium Family, a balance update shows up for everyone who has access. That is what stops two people spending the same gift card down to zero. Cards you have not shared do not update anyone else's phone.

