Wendys, home to a bunch of square burgers and Frosty, is following in Burger Kings footsteps and embracing mobile payments. Now, you can use the Ohio companys app to pay for your purchase in most (but not all) of its locations in the US. Just like its Burger King counterpart, the app acts as sort of a digital wallet that generates six-digit codes youll have to give to cashiers for payment. Wendys, however, has regrettably left out one of the BK apps best features — discounts and coupons.