
My personal favorite! A powerful photo editor created because for a quick & easy way to edit photos on the go with no fuss. Includes an intuitive interface so you can get right to editing, with tools such as; photo effects & frames, one-tap auto enhance, stickers, crop/rotate/straighten photos, adjust brightness, contrast, saturation, warmth, sharpen & blur, draw & add text, create your own memes, draw attention to your photo's subject with Focus, and Cosmetic tools: fix redeye, remove blemishes and whiten teeth... plus more being added all the time. Also, share to social networks right from Aviary.
http://www.aviary.com/

Even if you have never drawn or painted before, ToonPAINT sets you up for quick success by providing a “MagiSketch” that you can simply color-in. It’s as easy as “paint-by-numbers”, but using your own personal images. Unlike other photography apps, ToonPAINT is not just an image filter — it’s a smart-painting application that enables you to express your creativity and obtain compelling results without requiring you to take Art classes.
http://itunes.apple.com/us/app/toonpaint/id349890672?mt=8

HAVE FUN ON THE RUN; With Photoshop Express, it’s easy to improve your photos. Choose from a variety of one-touch effects, or simply drag your finger across the screen to crop, rotate, or adjust color. Add artistic filters like Soft Focus or Sketch. And never fear: A copy of your original file is always saved, and you can undo and redo changes until you get just the look you want.
http://itunes.apple.com/us/app/adobe-photoshop-express/id331975235?mt=8

Takes new photos or stylizes existing shots with 100′s of camera effects, that unlike most programs can be layered.
http://www.100camerasin1.com/

ClickySticky – Your kids will have a blast using their imaginations with this fun new animated sticker book app. Watch your kids interact with fun characters while learning about fish, airplanes and many animals. Each sticker character can be scaled, rotated and dragged onto each imaginary scene. ClickySticky includes ocean, aviation, space, dolls, arctic winter, and safari scenes.
http://itunes.apple.com/us/app/clickysticky/id365850969?mt=8