So here are a few of my favorite apps. (And now Favorite Things from Sound of Music is in my head).
Automate Your Life
Need lists and reminders? Try Wunderlist!
Want your profile photos on all your social media to sync, when you change one, they all change? Try Ifttt (If this, then that).
Snapseed is an excellent photo editor with filters and tools to improve your photos. Adobe Photoshop Touch is also an option. Lenka provides simple Black & White photos.