Following the new iOS Games Thread Catch All, I've created this one for the non-games department.
To kick this thread off, here a few of my favorite apps that I use (almost) daily:
1Password - not a luxury with the whole heartbleed fiasco going on. On sale now $8.99
Tweetbot - Just love this twitter client $4.99
Clear - Task and To Do List $4.99
Sleep Cycle - Alarm clock, keeps track on your quality of sleep and knows best when to wake you up! $0.99
Alien Blue - Best Reddit app so far $0.00 (yes, for free )
YNAB (You Need A Budget) - Free companion app of YNAB $59.99 (desktop). Sometimes on sale on Steam!
Smart Coin - Currency convertor $0.99 or for free as a free app using the Apple Store app.
Very iPhone centric...I don't own an iPad yet.
I wouldn't mind hearing what apps you all use daily.
Two websites that help me track for sales and what others recommend:
Appshopper - finding most of my deals here
Applr -recommend (or not) apps and follow friends doing the same. A bit more of a social way of finding the better things for your iOS device.