Prism-AAC
AAC for nonverbal users
About
This communication aid helps nonverbal individuals express themselves by tapping pictures to form spoken sentences. It offers core features for free, including customizable boards, word prediction, and offline functionality. An optional subscription unlocks advanced natural-voice speech and cloud AI.
What's New in Prism
1.9.3
October 28, 2026
• Emergency now works on the offline screen too: a large Emergency button says your call for help aloud, again every few seconds, until you tap Stop. • Emergency alerts go to your caregivers in Settings › Contacts. The app never calls emergency services by itself, and if no one could be reached it tells you so clearly. • Clearer information about the optional cloud speech and AI trial. • Reliability improvements when the connection drops.
MoreSubscriptions & In-App Purchases
Prism AAC Cloud
Monthly cloud speech and text AI allowance.
Developer apps
FAQ
What is Prism-AAC?
Prism-AAC is an augmentative and alternative communication (AAC) app designed to help nonverbal individuals communicate. It allows users to tap pictures to build sentences that are then spoken aloud.
Is Prism-AAC free to use?
The core communication features of Prism-AAC are free and do not require an internet connection or an account. This includes communication boards, a keyboard with word prediction, saved phrases, and device voices.
What does the Prism AAC Cloud subscription offer?
The optional Prism AAC Cloud subscription costs $4.99 per month and provides 50,000 new natural-voice speech characters and 100 cloud AI requests monthly. This subscription is valid on iOS and the web.
Does Prism-AAC work offline?
Yes, Prism-AAC is designed to work offline. Communication boards, saved phrases, and cached speech are available without an internet connection, ensuring communication is always possible.
What languages does Prism-AAC support?
Prism-AAC supports communication in 25 languages, including Simplified, Traditional, and Hong Kong Chinese. This broad language support makes it accessible to a diverse user base.
Can Prism-AAC be used on Apple Watch?
Yes, Prism-AAC offers direct communication capabilities from the Apple Watch. This allows for convenient and discreet communication directly from the user's wrist.
How is my data protected with Prism-AAC?
Prism-AAC prioritizes privacy with on-device AI, meaning your words stay on your device. The app explicitly states there is no data harvesting and no ads.
How often is Prism-AAC updated?
The latest version of Prism-AAC is 1.9.3, last updated on October 28, 2026. This indicates a commitment to ongoing development and improvement of the application.
