FrangoViewer is designed for the iPhone. It has the same fractal lenses as FrangoCamera but does not include the ability to apply those lenses to pictures stored in albums. With FrangoViewer you can take fractally transformed pictures with your iPhone and then review, email or post them to Facebook.
With FrangoCamera you can seelct a picture from your albums and then choose a part of that picture to get the exact artistic effect you desire in your final frango picture. Plus FrangoCamera has many extra features such animations.