Boardmaker Plus! versus Boardmaker with Speaking Dynamically Pro

Boardmaker with Speaking Dynamically Pro builds on the capabilities of Boardmaker Plus! by adding natural-sounding RealSpeak voices, word prediction and abbreviation expansion features.

You can make displays with voice output with Boardmaker Plus! but it is more limited in terms of the voice options as well as features that can used for activities like keyboarding, literacy, etc.  Boardmaker with Speaking Dynamically Pro includes three female voices (2 US and 1 UK) and one male voice.