Itunes connect and keywords

Question

I want to know do I need to separate keywords with commas and what is the best way to make keywords?

Answer 1

Apple has a nice writeup of how to do keywords in their "iTunes Connect Developer Guide" (and I've linked to the "First Steps" section which talks about keywords).

And yes, you should separate your keywords with commas.

There are a number of tutorials and helpful hints guides for choosing the right keywords that can be found online, like this one.

Answer 2

Yes, You should separate your keywords with commas. I am using sensor tower for keywords research and it's quite good. You can read more about it here.