The difference between a frappe and a frappuccino is that a frappuccino is a Starbucks trademark and so only they are allowed to sell them. The word Frappe is used more generally to mean a blended foamy iced coffee drink.
And Frappes was made most popular by Mcdonalds as their equivalent drink but can be served anywhere in any combination. Sweet, with coffee, without coffee, but they are always blended and milky.
The biggest difference between frappe and frappuccino is the ice cream. Frappuccino is rather like a milkshake with coffee, where milk, vanilla ice cream and hot coffee are combined to make a frothy drink, topped with cream.
A frappe is a simpler drink, made with instant coffee and water, but it has so many variations it may also include milk, cream, ice cubes, or brewed coffee instead of instant coffee.
Where frappuccino has a set recipe, a frappe is all over the place. You will get wildly different frappes from all over the country, depending on where you are.
What, on the other hand, binds them together?
Apart from the name, that is.
For starters, they're both iced beverages. As a result, they're a summer favorite, and you'll see them in people's hands a lot around the middle of August.
They're also both huge beverages, which is another commonality. The frappuccino is now 16 ounces/440 milliliters, while the frappe seldom exceeds 300 milliliters/10 ounces. It's typically approximately 250 ml/8.5 oz.