Space Hulk first price drop to $4.99. I haven't bought it yet but do to a back log of great games. https://itunes.apple.com/us/app/space-hulk/id742022720?mt=8
I bought this when the price dropped and love it, excellent presentation and a great game, I also bought warhammer quest when that dropped and still haven't got round to playing that yet but loving this so far
It's really anything but complex. Simple turn-based, every unit has four action points, use overwatch A LOT... that sums up the rules and major tactics. Honestly, it plays just like it looks like it would in YouTube videos.
Maybe I'm missing something obvious but I can't see how you log in. Great game though, with great animations of kill shots. Works really well so far on my mini non-retina, no crashes or noticeable issues.
I noticed that there's always a "not logged in" message in the upper right hand corner of the screen too....