Paint protection film is a thermoplastic urethane often self healing film applied to painted surfaces of a new or used car in order to protect the paint from stone chips, bug splatters, and minor abrasions.
PPF is a more permanent and worthy alternative to ceramic coating but it will cost you an arm and leg.
Ceramic coating can protect your car for one year, with proper car.
But for ceramic coat to be effective you need to have multiple layers applied on exterior paint.
Again you will need to spend alot for it.