Previous post about iOS app design prototyping tools presented the classification of such tools:
- UI Stencils: Very popular and high quality stencils. Very classy and attractive. iPhone and iPad stencils available. Pricing starts at 24.95$. Sketch Pads offered starting at 12.95$. Very well done and high quality. Highly recommended. One more thing, you can even get sticky versions of the sketch pad for drawing board sessions.
- MobileStencil: iPad, iPhone models all supported with most of the UI basic elements. Prices starts at 9.99$ for iPhone version. iPad version sells for 14.99$. They are plastic stencils that you can use with model papers of iPad or iPhone devices.
- Pocket Sketches: pocket sketchbooks, actual size of the device. Pricing is 20$ for a 5 pack of 16 double sided sheets or 8$ for a single sketchbook. Sketchbooks is of the same size of the device. iPad version not offered yet.
- Finally, don't miss this: 10 Free Printable Web Design Wireframing Templates.