What is the difference between CPC and PPC? Which one is more preferable?

PPC and CPC are often used interchangeable within the advertising community, however generally speaking PPC is used to describe the type of advertising program you are running. CPC, which stands for cost-per-click, is usually used in communicating what you are actually paying per click within your advertising program.

PPC and CPC are two sides of the same coin. CPC is a performance metric while PPC is a specific marketing approach. Within the advertising community, both PPC and CPC are often used interchangeably. There are various differences in PPC and CPC that are explained further. PPC stands for pay per click that is used to describe the type of advertising program you are running whereas CPC stands for cost per click that is used in communicating what you are actually paying per click within your program of advertising