Pixlr falls under the Autodesk company umbrella. Autodesk is known for it's unbelievable software programs; AutoCad and 3ds Max to name a couple. So you know, these people know their sh!te.
Here's a quick run down of what I like about Pixlr Express app. I have yet to play with the desktop version but will soon. Okay, check it:
-Has six different categories of coolness. Each having several types of modifiers: Adjustment, Effect, Overlay, Border, Text and Sticker. Sticker is my favorite because it have the comic word BOOOM!
-Undo and Redo buttons: If you don't like what your photo looks like after applying an effect, click Undo. Wait, you did like it... Redo.
-Saving: You can save in different sizes including the original size.
-Sharing: After you've finished your editing, click share and bam, shared!
Get it. Use it. Love it. http://pixlr.com/
|After. Yeah, got crazy on this one.|
|Before. Using my HTC One S phone with the HDR effect.|