No, they don't. Any Blue Apron gift card you may send or receive will remain in your virtual wallet until you use it to pay for your next subscription. Five days or five years - it's up to you. You can view your cards by accessing Blue Apron Balance through the main menu. Activating them is easy. Simply choose Gift Card when prompted to select your payment method. Your bank account will be bypassed and the cost of your order will be covered by the gift card.