Predictable text

I have several students with disabilities who have been using the SnapType app on the iPad. We have found KAMI to be much more effective except for one feature, predictable text. These students have physical and also learning disabilities and predictable text is a godsend for them when they are unable to spell the word. Perhaps there is a way to incorporate this into KAMI that I have not figured out? Please advise-
Lisa Butler, MA,CCC-SLP