We have featured many useful photo apps that can help you add various awesome effects to your photos. But if you just want to turn your photos into sketches, the photo app Sketch+ may be able to catch your eyes.
Sketch+ is a creative photo app developed by Su Bingxi, and designed to offer you an easy way to convert your photos into incredible sketches. The iPhone app features intuitive user interface in order that you can conveniently import your photos from camera roll, or use built-in camera function to capture photos for further modification. The photo app comes with 7 preloaded sketch effects, and allows you to create both grayscale and colorful sketch. When finishing your work, you can also share these creative sketch-style photos with friends via Email.
Sketch+ with a size of 8.0 MB is compatible with iPhone, iPod touch and iPad running iOS 4.3 or later. The iPhone app is free for a limited time at present. If you’re interested, jump to App Store for more details.