I see these two terms used interchangeably all the time, so I thought I would provide some insight on the differences between a POLISH and a WAX. I'm going to try and keep it as simple as possible...
A
polish generally contains
abrasive particles (used for removing oxidation and swirl marks) or
chemical cleaners (used for removing embedded dirt, road film, and old waxes), and sometimes both! A polish is what you use before you wax.
A
wax, whether a natural (carnauba) or synthetic (man made ingredients) formula protects and enhances the finish. Unless your RV is brand spankin' new, you should always use a polish before you wax. The cleaner the surface, the better your wax will adhere and the longer it will shine.
An AIO (all in one) and a cleaner wax are a combination of a polish AND a wax. These are especially popular for boats and RVs because they clean, polish and protect in ONE step. Who wants to perform two steps on something as large as a boat or an RV?!
Unfortunately there's no written rules on what each manufacturer can call their "polish" or "wax", so some actually misrepresent their product by using a name that isn't necessarily applicable to the chemical inside the bottle. When a product is called a "polish" it's safe to assume that it doesn't protect the finish. If it does, then it's either an AIO (all in one) or misnamed.
Any questions?