While both are lemon Girl Scout cookies, the two cookies are slightly different. Lemon-Ups are new, and they replaced the Savannah Smiles, which were lemon shortbread cookies coated in powdered sugar.
While recipes may vary, the bakeries make Thin Mints, Adventurefuls, Trefoil, Caramel Chocolate Chips, Girl Scout S’mores, Lemonades, Lemon-Ups, Toast-Yays!, and Toffee-tastic cookies.