Abilipad app, formerly Intellipad app, has a new logo and continues to be updated and expand supports for struggling writers on the iPad. Available for iPad only (19.99), it is the only adaptive note taking app I am aware of.
Created by Cheryl Bregman, this adaptive note app provides the ability to modify the keyboard content, text to speech and alphabetical word prediction. 
The ability to add pictures to the note pad also provides additional visual prompts and supports for users during the writing process.
Here is one of two instructional videos about Abilipad app from the Abilipad developers website:
This is a great tool for special needs and is currently a one of a kind and worth the cost for its unique visual and adaptive supports providing word prediction and text to speech tools for writing.
Check it out and consider this app for your OT iTool Kit!
Carol
I haven’t used either a lot but Verbally appears to be similar to this.?. Are the pictures the main difference maybe?
Greg, I have a lite version it appears not the complete 99.00 app. Verbally is a communication app for high functioning individuals that require only text not pictures. Verbally does have word prediction and will learn the frequency of words used but is not a word processor like Abilipad.
Abilipad more of an adaptive word processor with the ability to modify the keyboard to suit the user or content, whereby Verbally is more for communication from my quick review. I don’t see image support in Verbally like Abilipad has.
Carol