If customers transfer their rewards to non-customers, it will trigger word-of-mouth marketing and can bring you other, loyal customers. The rewards may be more meaningful for your customers if they can share them, for example imagine someone who is your loyal customer and earns a lot of rewards, for example loyalty points but cannot use them. Example can be an older person who uses a credit card and earns points for travelling but does not travel themselves. They would participate in the program and spend more at your store if they can give the travel credits to their children or grandchildren.
Voucherify offers transferring points between loyalty cards, whether these are multiple loyalty cards of one person from different brands or the same brand loyalty cards with different cardholders.