I want to know about notion 6 purchase

Hi. I am the user using studio one 3 professional.

I am plaing to purchase notion 6.

However, I found that there are two options

One is Just purchase notion 6.

Another one is that purchase studio one 3 professional for notion 6.(it is cheaper than notion 6)

what's the differece between two items.

those two options have same function ? or not ?

I want to know.

please give me the answer to me...

Thank you so much.

Have a nice day!