Honestly, be it my phone or my PC, I'm really not into 'APPs' too much. In my phone I have only added Skype, weather, a backgammon game & a billiards game (don't them very much or often, though). Most of the stuff I use is just 'standard equipment'... mail (both my personal Hotmail acc't & my POP business acc't; being able to have both in my phone certainly pleased me), Calendar, Music & Photos. For me, mostly, primarily, it's a phone but, a for that is a great help for business, appointments and correspondence. It's fun, useful & handy sometimes having a computer in my hand that can access the Net when there's a WiFi available.
Oh, & I really
like the built-in GPS & map things! Terrific for quickly locating something or a route.
I sure like how well the screen can be seen or viewed even in bright sunlight
I, also, like how well & easily my Windows 8 PC & Windows Phone 8 play together. Moving music or images between the PC & the phone is so effortless.