Yes, SCAL has many shapes. You will need 1 cartridge to activate the machine reader. I think you get 1 with the purchase of the machine, anyways.
The shapes aren't all simple, either. There's plenty for kids and adults. There's even a dumbbell shape.
Dingbats are listed under fonts and those have even more shapes. I don't exactly recall, but I think each font also carries more shapes and designs.
There are forums on how to use the SCAL program. People have created shapes or words which are broken down into categories. You can save any design you like and then bring it up in SCAL. SO much cheaper than buying the entire cartridge to the one shape you needed from it.