The Open Voice Factory is an open-source assistive communication technology that runs on any platform, from tablets to laptops to phones.
Anyone can create an aid by editing a PowerPoint template to add their one pages or utterances. When you upload your template to the factory, it will create a working communication aid for you.
The resulting programs run on any platform, from tablets to laptops to phones, without installation or complex setup.
To help you get started, visit http://www.theopenvoicefactory.org/guides.html