AFCI acts as a circuit breaker and prevents a potentially dangerous fire in your commercial space or in your home by immediately disconnecting the electrical circuits.
GFCI outlets are used outside and in wet areas such as kitchen, bathroom, laundry room or garage where the risk of electrical shock is optimal. GFCIs give the homeowner protection by tripping the circuit if it becomes unbalanced or overloaded. This outlet stops the flow of electricity if it’s tripped.
NOTE: GFCIs should not be used for refrigerators, freezers or other appliances as they could trip without your knowledge and then you have a large mess on your hands. Remember how expensive it is to shop at the grocery store? If your fridge is on a GFCI and it trips, you have to make another trip to the store to replace all of your spoiled food.