Predictable 4+

Text based AAC app

Therapy Box Limited

    • 4.4 • 129 Ratings
    • $159.99



Predictable is a multi-award winning text-to-speech app for people with conditions such as ALS/MND, autism, cerebral palsy, Down's syndrome, and more. It aims to make it easier and quicker to communicate, using a range of access methods, rate enhancement features and customisation options.

Word Prediction
Using smart word prediction technology, the app makes speaking out a text-based message easy. Predictable learns from your pattern of use and predicts what you will type next, making typing easier and more efficient.

Phases and categories
Save and organise phrases that you need quick access to in a simple grid format. Further customise your phrases by adding symbols, images, audio recordings, links and more.

Choose from a wide range of useful and exciting features such as notes, share, translate, chatGPT and draw to customise your keyboard screen to include features that you want to use. Attach these to keyboard keys, hot corners, head tracking gestures or external keyboard shortcuts. The possibilities are endless!

Multi Language
Switch between any of our 43 languages* to create your personalised bilingual set up. You are able to choose a primary and secondary language and seamlessly transition between both on the go, with appropriate keyboards and voices selected for both. Languages supported include:
Arabic, Bangla, Bulgarian, Catalan, Chinese, Croatian, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Maithili, Malay, Marathi, Norwegian (Bokmal), Persian, Polish, Portuguese, Punjabi, Romanian, Russian, Slovak, Spanish, Swedish, Tamil, Telugu, Thai, Turkish, Ukrainian, Vietnamese, Gujarati, Urdu, Somali
*Some languages only offered with online voices

Speech and Voice Options
Compatible with standard iOS voices, including the enhanced voices available to download and your iOS personal voice. You can also use your voice-banked voice from ModelTalker, Acapela, SpeakUnique and The Voice Keeper.

Predictable offers a wide range of access methods and accessibility settings including:
Direct touch features to handle accidental selection
Screen tap - a scanning method where you touch the screen for selection and/or progression
Switch access - accessible via Bluetooth switch box + switches (compatible with Therapy Box Switch Box and RJ Cooper Switch Interface) as well as Head tracking face gestures.
Head tracking - use facial recognition to interact with the app with no calibration or extra hardware required.
Auditory preview - hear the onscreen text before selection.

Customise the layout and appearance to truly optimise the app to your preferences by changing the layout, font size, colours and more. Different keyboard options (including QWERTY, Ten Key, Apple and Bluetooth) and different templates (including Dark, High Contrast and Low vision) are available to make this customisation clear and simple.

Web Platform
Log in remotely and manage your settings and grid content from our web platform. The web platform is compatible with the format to make importing easy.

User guides are available on your app, and on the Therapy Box website. Send any questions to Short tutorial videos are available and you can also book in for a one-to-one training/support session. You can find more about Predictable at

What’s New


Bug fixes

Ratings and Reviews

4.4 out of 5
129 Ratings

129 Ratings

Dissatisfiedceleste ,

Great app...

This is a great app, but when you are using this app, it keeps asking for your password. Please fix this. Also can you please make it full screen on the iPhone X? Thank you.

Mooseneuron ,


Predictable is a fantastic app, and has become a really essential tool. Somehow, the current version doesn’t allow users in. No luck asking for a link to reset your password either. The app, as well as the website will tell you it has successfully sent an email, but nothing arrives.

Why why why? Such an easy fix. Your paid users have to use the app in “Guest Mode.” Honestly, it’s almost cruel to have an app that’s so good that users have come to depend on it, and then somehow let a glitch lock them out. There are other reviews here that also seem to be struggling with password issues.

Please fix this.

Developer Response ,

Good afternoon,

Thank you for your feedback. Could you send your user email address to please so that we can help you login? Your user account might have encountered a migration issue between Predictable 5 and Predictable 6 database, we can fix it easily if you send us the concerned email address.

Kind regards,



Great AAC solution, responsive team

I found this app to be a great solution for individuals who communicate primarily through typing. The interface is intuitive and offers some nice customizable options. It allows for preprogrammed messages for efficiency when necessary. The developers have been supportive and very responsive to questions.

Developer Response ,

Hi Kate,
Thanks for leaving a positive review with feedback on the features that you find helpful. I will pass on your comments to the team.

App Privacy

The developer, Therapy Box Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • User Content
  • Identifiers
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

Scene & Heard Pro
inku - tool for dyslexia
Predictable Español
Scene & Heard Pro Lifetime
Predictable Português
Predictable Norsk

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