Camera+ guides you through the process (pictures)
One of the earlier photo editors still gets the job done with new features in the latest version, an intuitive interface and tons of tools to tweak your images.
Camera+
Browse filters
Flip through the different types of effects with the buttons at the bottom, then select from the named filters in the main screen.
Choose a size
You can choose from several standard sizes, including square shots when you know you're going to be posting to Instagram.
Adjust exposure and focus
Bring up the onscreen controls then manually adjust focus and exposure using the wheel on the right.
Share your work
Send your finished image by email, through Messages, create a Web link, or pick from social networks like Facebook, Twitter, or Flickr.
More options in the menu
Don't forget to check out the menu before you snap your picture to toggle various useful features that will make your picture better.