Late reply, but it really depends on what they are describing. Calling a girl 'pretty' means she is attractive. Calling her 'cute' means adorable, or the same way kawaii is used to describe people & objects, the same way you would say a kitten is cute, you wouldn't say a kitten is pretty. But they can be used interchangeably when describing a person :)

pretty is like きれい。 cute is like かわいい。

Cute = kawaii, pretty=ke rei

All comments help a lot!! Thank you so much!!

They're both terms that describe levels of acknowledgment.