Sweet Frog (stylized as sweetFrog - Premium Frozen Yogurt) is a chain of frozen yogurt retail restaurants owned and operated by Sweet Frog Enterprises, LLC. Sweet Frog customers create their own soft-serve frozen yogurt with numerous flavors and toppings from which to choose. Derek Cha, who immigrated to the United States from South Korea at the age of 12, is the founder of Sweet Frog. He opened the first Sweet Frog shop in Richmond, Virginia in 2009, at a time when the United States economy was in a recession. Cha founded Sweet Frog on Christian principles. The "FROG" part of the name, according to Cha, is actually an acronym for "Fully Rely on God".