I am not sure what changes were made lately, but I keep having problems with the last sentence on each page being half cut off and not being able to read it. I like using paging instead of scrolling because the screen for scrolling keeps bringing up the options menu.
I always go for wind magic, I love it, though I guess I understand why it would be weak at low levels. I've still spent the last ten min deciding if I should list out all the practical uses these spells could have though lol. I guess I'm just biased
With the modern day understanding of pressure, wind should be quite strong. You could use multiple curents to make a funnel and increase speed (same with water) or you could combine it with fire to make an afterburner/combustion chamber. Getting hit by a magic blowtorch would definetly suck.