What's everyone's favourite photo editing app for iPhone?

There are tons of great photo apps for the iPhone and iPad. Photo Editor - Snapseed is a comprehensive photo app that you'll wind up using every day. Photoshop mobile is another editor to consider. And Befunky is great too with the addition of more fun editing features. Swap Photo Parts - With Juxtaposer you can take one part from one photograph and add that part into a second photo. With FACE SWITCH you can do just that, switch faces between multiple photos. Panoramic Photos - Pano features the ability to take 360-degree panoramas using up to sixteen photos with a semi-transparent guide helps you line up each shot perfectly. With Pano's alignment tools, blending, and colour-correction algorithms provide you can really get seamless images in just seconds - I have been amazed. Text on Photos - Photophrase blends beautiful typography with pictures to create unique images you can share. You can use Photophrase for photo captioning, photo sharing, and just plain photo fun. Funny Faces - Faceship offers tons of face-changing effects! Besides the TinyFace, effects include a bubbleface, square head, nerd glasses (with enlarged eyeballs!), catface, the best moustache ever, some crazy mirror effects, horrible zits, sad face and happy faces, fat neck, and a bunch more. Another option is PhotoGoo which lets you turn your photos to Goo! Create funny facial expressions from your friends faces. Un-crop - If you've ever taken a hasty photo on your phone and didn't leave enough room on the outside, AntiCrop is the app can uncrop those photos by filling in the edges with just a few swipes. http://www.edit-photos.net/iphone

I like and use Snapseed the most, but Leonardo is probably the best. Snapseed is free and Leonardo is $5. There's also a free version of Photoshop that's ok.