I've been liking these apps lately:
PhotoWonder (you can make cute emoji's of your face, it's adorable)
MeituPic
CocoPPa (you can somewhat customize your app icons to really girly stuff without the "jailbreaking")
Paperama
Brave Frontier
On my Nook HD, my favorite game is Geometry Dash and my favorite utility app is either Quizlet or PowerSchool. I don't really have an ultimate favorite, those are the only apps I ever use, besides the Internet and books, which don't really count as apps. I'd use Crunchyroll and YouTube more often, but it's headphone jack broke.
I don't have an actual smartphone, but if I did, I'd probably use the same apps.
I can't believe I forgot tumblr on my list. Even though there are some stupid updates. Also, the messaging system makes me mad. Why can't we have a sent box or something? Also, it would be nice to get notifications on your phone when you get messages- I've missed so many villager transactions because I couldn't get to a computer. But other than that, its still one pf my favorite apps.
favourite games are puzzle & dragons, love live
they're probably the only two games I've had on my phone more than a month, with the exception of candy crush which I deleted recently lol
favourite other apps would probably be cocoppa and my period.... tracker... as well lmao