From Custom Solutions of Maryland:
Help Me Write was developed for the visually impaired. Users can prepare text using large (up to 144 font size) colorful (black, red and blue) letters and hear the words "spoken" as they are typed. Users can use buttons to "hear" all text, text from the cursor to end, selected text, etc. When text is completed, it can be copied and pasted into an email or other text document using that document's current font style.
What's new in this version:
Version 1.4.0 is compatible with El Capitan.