Speechability

The app makes it extremely easy to communicate with other people, and provides access to fully customizable phrases and words to reduce typing effort. Speechability provides a fun and easy-to-learn layout, and offers a wide variety of features, with more being added all the time to ensure the best experience for all our users. 

Features include

50+ natural voices with over 25+ languages
Customize the rate and pitch of each voice
Text highlighting to follow the words as they are spoken 
Single screen access to all the features
Add, delete and organize common phrases for quick access
Fully customizable text dashboard
Change text size on the go 
Expand the dashboard for the best view
Easily show everyone what you’ve typed
Share text with your friends and family
Copy text from Speechability and paste it in other apps
One-click to remove all text 
Fully compatible with Dark Mode
Create your own Word Bank for quick access to the words you speak the most 
Complete punctuation support for natural voice pauses
No internet connection required

Additional Note: 
Speechability offers a 50% discount to educational institutions when they purchase 20 or more licences of the app through Apple School Manager.