3 cups


1½ cups


Word prediction
Phrase bank
Floor hold
Switch Access


Text-to-speech AAC app

Predictable is designed for people who are literate but don't have the ability to speak possibly due to cerebral palsy, motor neurone disease (ALS), autism, laryngectomy, stroke, apraxia or brain injury.

What's new in Predictable?

Don't miss the latest news:

The way accounts work Predictable is changing: please see our blog post about Offline and Online Accounts and the removal of Guest Mode.

Head tracking and Gesture Speak

Predictable offers an enhanced head tracking feature using face recognition technology available on newer iPad Pro devices.


Face gestures are also compatible with scanning methods: you can scan the items with switches and select by blinking. You can also create recipes of gestures to create quick and easy access to a huge number of phrases.

Other alternative access methods

  • time and force delay to prevent mishits and accommodate tremor or other motor difficulties

  • switch scanning access - use one or two switches via a Bluetooth switch box and the on-screen scanning

  • touch anywhere - use the screen as a switch

Phrase bank and grid view

Predictable now offers the possibility to use the phrase bank in a grid view. You can customise your phrase bank content and the size of the grid.

Web platform PA

Manage your phrase bank from the web platform

Log in with your Predictable user details and customise your phrase bank content.


Take the online training to get familiar with all the features. 

We can support you in creating Predicable User Accounts. Please contact support@therapy-box.co.uk if you would like assistance.

Avoid interruptions

Predictable can automatically speak prepared sentences while you type your message. This lets people know you're speaking and helps prevent interruptions. You can save as many of these messages as you like and Predictable will rotate through them so that you don’t repeat yourself. They can also be played at the touch of a button.

Voice options

Use Acapela's my-own-voice or ModelTalker to generate your personalised synthetic voice! Acapela my-own-voice and ModelTalker generates synthetic versions of users’ voices through sophisticated softwares.

Users can record sentences to generate the version of the voice they would like. The selected voice is then able to be downloaded and used within Predictable.

See all the voice options:

Voice options

“The thing that you’ve made is going to help me so much. I am so happy to be here and to have the opportunity to thank you. Thank you so SO much for having done something that will make my life so much easier.” 

Rick, using Predictable

And get your hardware repaired or replaced within 48 hours and unlimited support over phone and email.

  • Purchase a two-year guarantee

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We agree on a time and date, a member of Therapy Box team comes to you if you live in the UK, or calls you on Skype and run you through the app to make sure you end up knowing it like an expert.

  • Book your personal training session

Which includes device(s), the app pre-installed ready to use and accessories that you may need depending on your needs.

  • Purchase a bundle 

Many ways to get Predictable

If you already have a device, you can also buy the app from the App Store or Google Play Store.

Book an online training for your AAC department

We offer a free online training for any Speech & Language Therapy/AAC teams to make sure they are aware of Predictable features. 

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