# Prism-AAC — AAC for nonverbal users

> Free, offline AAC app with on-device AI and Apple Watch support. (iPhone/iPad app by Synalux LLC.)

- Source: https://appshunter.io/ios/app/prism-aac/id6764692277 (this page in markdown: same URL + `.md`)
- Developer: [Synalux LLC](https://appshunter.io/developer/1895881089)
- Category: Medical
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.0 · 13 MB
- Languages: American English, Arabic, Dutch, Filipino, French (France), German (Germany), Hebrew, Hindi, Indonesian, Italian and 12 more
- Released: 2026-05-13
- Data updated: 2026-09-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/prism-aac/id6764692277/reviews.md

## What is Prism?

Prism AAC — the only free AAC app with on-device AI, Apple Watch support, and 12 languages. No subscription. No ads. No data harvesting. Just communication.

Used by families, speech therapists, and hospitals worldwide. Featured communication tools that work without internet — because your child's voice shouldn't depend on WiFi.

WHY PRISM AAC:
- 100% Free: No hidden fees, no subscriptions.
- Privacy First: On-device AI ensures your data never leaves your device.
- Apple Watch Support: Communicate directly from your wrist.
- Multi-Language: Supports 12 different languages for global accessibility.
- Customizable: Tailor the vocabulary and interface to your child's specific needs.
- Offline Capabilities: Fully functional without an internet connection.

## Key features

- On-device AI
- Apple Watch support
- 12 languages
- Offline functionality
- Customizable vocabulary
- No subscriptions or ads


## Frequently asked questions about Prism

### What makes Prism-AAC unique?

Prism-AAC stands out as the only free AAC app offering on-device AI, Apple Watch integration, and support for 12 languages. It prioritizes user privacy with no data harvesting and operates fully offline.

### Does Prism-AAC have ads?

No, Prism-AAC is completely ad-free. The developers have stated there are no advertisements within the application, ensuring an uninterrupted user experience.

### Is Prism-AAC free to use?

Yes, Prism-AAC is 100% free with no hidden fees or subscriptions. This commitment to being free is a core aspect of its design and accessibility.

### Can Prism-AAC be used without internet?

Absolutely. Prism-AAC is designed to function fully offline, meaning users can communicate effectively regardless of internet connectivity. This is crucial for consistent access to communication tools.

### What devices support Prism-AAC?

Prism-AAC is available on Apple Watch, iPhone, and iPad. This broad compatibility allows users to communicate across multiple familiar devices.

### How often is Prism-AAC updated?

The latest version of Prism-AAC is 1.8.9, last updated on August 22, 2026. This indicates a commitment to ongoing development and improvements.

### What is the age rating for Prism-AAC?

Prism-AAC has an age rating of 4+. This suggests it is suitable for children and individuals aged four and older.

### How does the on-device AI in Prism-AAC work?

The on-device AI in Prism-AAC processes data directly on the user's device, ensuring that personal communication information never leaves their control. This enhances privacy and security.

## Version history (last 5 releases)

### 1.8.9 — 2026-08-22

Fixes AI replies being replaced by an emergency message. An ordinary question now gets an ordinary answer — the safety filter no longer treats the assistant’s own suggested phrases as a crisis.

### 1.8.8 — 2026-08-21

Fixes the AI assistant not responding on iPhone and iPad. Chat replies now work reliably, and answers are no longer replaced by an emergency message.

### 1.8.7 — 2026-08-18

Reliability and security improvements. On-device model downloads are now verified before use, so first-time setup is more dependable.

### 1.8.6 — 2026-07-09

Updated screenshots and minor improvements.

### 1.8.5 — 2026-06-18

Deep accessibility audit — 70 fixes:
• Switch scanning — Bluetooth switch, gamepad, or keyboard support
• Simplified keyboard — 15-key layout for severe motor impairment
• Head tracking — repositioned PIP, toolbar scroll arrows, 800ms min dwell
• Emergency — cancel for all severities, high contrast, 8-language support
• System a11y — prefers-reduced-motion, prefers-contrast:more
• iPhone landscape layout fix, iPad Split View support
• 16 emergency words × 8 languages in crash recovery
• Pinch-to-zoom enabled, ARIA landmarks, haptic differentiation

## More apps by Synalux LLC

- [Synalux POS](https://appshunter.io/ios/app/synalux-pos/id6777999853)
- [PrismCoach](https://appshunter.io/ios/app/prismcoach/id6778001709)
- [Prism AAC Browser](https://appshunter.io/ios/app/prism-aac-browser/id6781468968)

All apps by Synalux LLC: https://appshunter.io/developer/1895881089

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*