The difference between Ding Dong's grocery shopping card and gift card is the way to use it.

1. Vouchers can be used as cash when spending money, and they can be paid directly. Usually, they can't be changed, which will be accompanied by some restrictions on use, such as categories, the number of coupons per use and so on. Vouchers are similar to coupons, and most of them can use a certain denomination to deduct the actual consumption amount when spending money.

2. Gift card is a new mode of giving gifts. It is a kind of voucher or prepaid card issued by a merchant for consumption in a designated merchant and time period. This card is usually used for employee welfare, business gifts, holiday gifts, etc.