Memrise Premium?

Does anyone have the full memrise version and is it worth it?

Firstly, Does it give you the abily to use memrise offline but on my laptop Not android?
Are there any other good benifits, I guess mainly it’s that I want to use it when I do not have wifi but only on the laptop not my phone.
( I don’t want to use bluestacks ) it makes the computer very VERY slow.