I really liked this game. I think it had a great atmosphere and its scares were never cheesy (a trap many other horror games fall into sometimes). I especially liked the subtle ways you messed with the phone like the camera or the creepy music/recordings.
Honestly, the main reason I'm writing a comment, though, is that I've watched Mark and some others play this game and it really frustrated me that no one bothered to look for the other endings (Mark kind of did, but he didn't really put much thought behind it).
My guess is that if I found this frustrating then it must've probably been even worse for the developer to see so many people experience only a third of their game.
So I just want to say that I didn't find it confusing. I got Ending 3 first because I looked around everywhere, then I ignored everything and got Ending 1 and for Ending 2 I did a bit of both.
I also noticed that I've played your other game as well and I remember liking it quite a lot, too. You seem to put a lot of work into your games. They're both very different from each other stylistically but still unique, of high quality and full of little details (I assume the graffiti in the building is a nod to the first game?).
I'll definitely be looking forward to what you do next. :]