This week's best iPhone apps are giving you all kinds of gifts. You'll find a trio of cool camera apps as well as a note-taking app that you could use for a wide range of things.
Loopcam: GIFs are fun, but they're meant to be shared. This app lets you animate them and then spread them all over your social networks. Free.
Stilla: This is a gyroscopic camera that stitches your pictures together into gorgeous loops. Snap photos from various angles, tap a button, and it produces beautiful sequences held together by a crystal-like effect. $1.99.
MyFaceWhen: If you'd like another GIF-making option, this is a good one. Upload your photos or videos, animate them and share them with whoever you please. $0.99.
Index Card for iPhone: You were probably in school the last time you used a stack of index cards, but those thick rectangles of paper are still useful, albeit in digital form. This app isn't just for cramming for your bio final — it's up to you how you want to use it, and it's a good way to keep track of different categories of notes. $0.99.