Some features of ScreenChomp:
- record audio and doodle commentary
- scrollable background increases writable area by 3x
- customize size and color of three available pens
- import, resize and reposition background image
- erase the doodle without erasing the background
- easy sharing options include copy or email the link, or post the link directly to facebook
Interface is very intuitive and easy to use. Only one background image permitted, so anything fancy takes a little planning and image editing.