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About
Predictable is an award-winning text-to-speech augmentative and alternative communication (AAC) app developed by Therapy Box, built for people who are literate but have difficulty speaking — whether some or all of the time. Trusted by thousands of users globally, it serves individuals living with conditions such as MND/ALS, cerebral palsy, autism, stroke, brain injury, and head and neck cancer. At its core, Predictable features an intelligent keyboard with smart word prediction, a fully customizable phrase grid, and robust settings. Users can personalize every aspect: choosing from device or online voices, integrating voice banking providers (Acapela, SpeakUnique, ModelTalker, The Voice Keeper), or leveraging ultra-realistic AI voices via ElevenLabs. Over 6,000 symbols auto-assign to words across the interface for visual support. The app supports 43 languages, allowing users to set a primary and secondary language with access to in-built keyboards, online voices, and word prediction in each. A real-time translation feature lets users translate and speak messages instantly. ChatGPT is integrated directly into the message window — removing accessibility barriers to conversational AI. Predictable supports multiple access methods, including iOS head tracking with no additional hardware. Phrases, categories, images, multimedia, and audio recordings can be fully personalized in the grid. Shortcuts and keyboard customization make communication faster for every user's unique needs.
Key Features
- Smart Word Prediction: Intelligent keyboard that predicts the next word to accelerate communication and reduce effort for non-verbal users.
- Multilingual Support (43 Languages): Users can set a primary and secondary language from 43 supported languages, with access to keyboards, voices, and word prediction for each.
- AI Voice Integration (ElevenLabs & Voice Banking): Supports ultra-realistic AI-generated voices via ElevenLabs, plus voice banking providers like Acapela, SpeakUnique, ModelTalker, and The Voice Keeper.
- ChatGPT Integration: Ask ChatGPT anything and receive responses directly in the Predictable message window, with no accessibility barriers.
- Customizable Grid & Symbol Prediction: Fully personalizable phrase grid with over 6,000 auto-assigned symbols, images, multimedia, and audio recordings to suit any user's communication needs.
Use Cases
- Enabling individuals with MND/ALS or cerebral palsy to communicate independently using text-to-speech and word prediction.
- Supporting autistic individuals who are non-verbal or minimally verbal in expressing needs, thoughts, and feelings.
- Assisting stroke or brain injury survivors in rebuilding communication through a customizable AAC interface.
- Helping people with head and neck cancer who have lost the ability to speak to maintain social and professional communication.
- Allowing multilingual AAC users to communicate across 43 languages with real-time translation and native-language voice output.
Pros
- Highly Accessible & Customizable: Supports multiple access methods including iOS head tracking with no extra hardware, and every aspect of the interface can be tailored to individual user needs.
- Cutting-Edge AI Features: Integration of ChatGPT and ElevenLabs gives users access to state-of-the-art conversational AI and realistic voice synthesis without leaving the app.
- Broad Language Coverage: With 43 languages and instant translation, Predictable serves a truly global audience of non-verbal users.
- Clinically Endorsed & Award-Winning: Used by thousands worldwide and recommended by speech-language therapists, offering a trusted solution for AAC needs.
Cons
- iOS-Only Platform: The app is primarily built for iOS/iPadOS, limiting access for users on Android or other platforms.
- Paid App Cost: As a specialized AAC tool, Predictable comes at a price that may be a barrier for some users without funding or insurance support.
- Online Features Require Connectivity: Some languages rely on online word prediction and voices with a daily quota, meaning full functionality may be limited without an internet connection.
Frequently Asked Questions
Who is Predictable designed for?
Predictable is designed for literate individuals who have little or no speech, including people with MND/ALS, cerebral palsy, autism, stroke, brain injury, or head and neck cancer.
What voices are available in Predictable?
Users can choose from built-in device voices, online voices, or voice banking providers including Acapela, SpeakUnique, ModelTalker, and The Voice Keeper. ElevenLabs AI voices are also supported for ultra-realistic speech.
Does Predictable support multiple languages?
Yes. Predictable supports 43 languages. Users can set a primary and secondary language and access keyboards, voices, and word prediction for each. A real-time translation feature is also available.
How does ChatGPT work in Predictable?
ChatGPT is integrated directly into the app's message window. Users can ask questions and receive AI-generated responses without leaving the communication interface, making AI fully accessible for non-verbal users.
What access methods does Predictable support?
Predictable supports a variety of access methods, including touch, switch access, and iOS head tracking — which works on many iOS devices with no additional hardware required.
