Best format of Hooktheory 1 and 2

Hi!

I’ve tested hookpad and found it quite nice. Now I’m thinking of buying the books which I’m sure are good as well. My choices are either buying the Web version and reading on my laptop (which I don’t always have with me) or my phone (but how good is the web version on the phone?) or buying the Android version and reading it solely on my Samsung Galaxy S7 phone, which doesn’t have the largest screen.

What would be the sensible choice here? I’m kind of assuming that buying the Web version doesn’t give me access to the Android version and vice versa?

The web version will work fine on the phone (though it does require an internet connection).

Dave