Predictable, a multi- award winning app, gives a voice to people!
Designed for literate individuals who have lost the ability to speak; possible due to cerebral palsy, MND, a laryngectomy, stroke, apraxia or brain injury.
Using the latest word prediction technology the app makes speaking out a text based message easy.

Featuring a world class software which learns from your patterns of use and thereby predicts what you will type next in your message easily and accurately.
Predictable makes typing (in both American and British English) accurate and speedy!

Categories, in Predictable, make it possible to save your frequently used phrases or sentences and easily retrieve them when you want to speak them.

If you still aren’t convinced, have a look at these amazing app features:

Change the rate and pitch of the iOS voice
Different keyboard options to choose from (10 Key, QWERTY, ABCD, High Frequency, Apple and any other downloadable keyboard).
Replace the keyboard with a note pad for on-screen handwriting that works with the word prediction
Customise your Predictable look by changing texts, colours and other settings
High Contrast option
Ability to increase the size of the word prediction text

Encourage Communication
Link your phrases in categories to YouTube videos, iTunes songs or website URLs
Have discrete conversations without text-to-speech in the Publish mode
Options for increased auditory prompting and visual feedback
News Feed to keep up with the latest news from around the world
Send SMS**, Email*, update Facebook* or send a tweet on Twitter*
No WiFi needed to use most the app (only needed for updating news stories and sharing via email or social media)

Switch Access
Accessible via Bluetooth switch box + switch/es (compatible with Therapy Box SwitchBox and RJ Cooper Switch Interface)
Compatible with the iOS method of scanning
Configurable settings for auto or user scan
Use the whole screen as a switch with scanning (Touch Anywhere method)

Customer Support
User guides available on your app, on the website and upon request
Send a support request directly from your app
Call us up with any queries or problems
Short tutorial videos available

Our Proudest Moments:
“A company to watch in the future. Again, I like what they stand for and that the heart of their business is the desire to help people and their families be able to communicate with one another. Impressive awards and impressive company!’ Sir Richard Branson, founder of Virgin Group.
2011: Mphasis Universal Design Award - Predictable
2013: Ericsson App Award Winner – Predictable
2014: Queen’s Award for Enterprise: Innovation – Therapy Box
2014: Appsters Most Innovative App - Predictable
2015:- TechUK mHealth Best App Developers - Therapy Box
2015 - Nectar Small Business Award - Therapy Box
2016: German Medical App Award - Predictable
2016: Talent Unleashed Award - Digital SME (Tech innovation)
VOLUME PURCHASE PROGRAM - 50% off to enrolled organisations
You can find more information about Predictable (including a full feature list to help gauge suitability) at

What’s New

Version 5.4.3

Bug fixes

Ratings and Reviews

4.4 out of 5
103 Ratings

103 Ratings

Mark mufc ,

Perfect if speech problem

I have difficulty in speaking in general because of my brain injury
This works wonders taking away my frustration to get my point across
Highly recommended

Developer Response ,

Thanks for the review Mark. I will pass it on to the team



I expect better. The app design automatically adds Predictable / TherapyBox advertising to my emails. I might accept this if the app was free, but it really disappoints me that it does this. All it does is highlight my disability when the point is to help me lead a normal life. Please, please remove this. It cheapens the app and is totally unnecessary.

Developer Response ,

Thank you for the feedback. We will remove this in the next update.

Timmybmj ,

MS user

I have MS and suffer from paralysed vocal folds. This app is essential as it means during periods when I can’t speak I’ve got some way of communicating with family etc.

Developer Response ,

Thank you for leaving a review and sharing how helpful Predictable is for you.


Therapy Box Limited
2.3 GB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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