Freestyle Libre 14 day - is it only for insulin users?

Is Freestyle Libre 14 day only for insulin users?

I'm type 2.

I'm just looking to continuously monitor my levels to see how different food and activities affect my levels. It is a bit expensive, but i thought i'd give it a try for maybe 1 month.

Input from other non-insulin users is appreciated.

Are there any other devices that continuously monitor glucose levels, that are better, cheaper or more accurate.
I still plan doing a prick once or twice a day for comparison on the levels until i know how much it is off.