Proclaim AAC vs Prism
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proclaim AAC
This communication app helps individuals with speech difficulties express themselves and develop language skills. It allows for personalized button creation with images and voices, supporting various accessibility needs and languages. Designed for all ages, it empowers users to communicate what matters most.
- Personalized button creation
- Customizable images and voices
- Supports multiple accessibility needs
- Available in English, Spanish, and French
- Designed for all ages
- COPPA compliant
Read full descriptionHide full description
Use your creativity and personal knowledge of your loved one’s unique needs and cues to configure an app that unlocks their ability to communicate and gain progressive language skills. Inspired by a grandson’s journey and developed with professionals, Proclaim AAC supports all ages and many accessibility needs including, autism, dementia, Down syndrome, apraxia, aphasia, ALS, chromosome 18, and more. Features: - Runs on standard smartphones or tablets - Fast, simple button creation with personalized images and trusted voices - Mission-driven to unlock self-expression for all communicators - Templates to spark caregiver creativity - Designed for all ages and accessibility needs - Supports English, Spanish and French - Family-friendly with COPPA compliance Why Proclaim AAC? For parents, caregivers and educators, Proclaim AAC empowers your loved one to express what matters most without extensive training, expensive apps or specialized equipment. Don't lose hope. Download now. Privacy Policy: https://mattisonedu.com/privacy Proclaim AAC is an Augmentative and Alternative Communication (AAC) app designed to assist individuals with speech difficulties. It does not provide medical diagnosis or treatment.
Prism
This communication app provides on-device AI and supports 12 languages, offering a private and accessible way for nonverbal users to express themselves. It functions fully offline and can be controlled from an Apple Watch, making communication possible anywhere, anytime.
- On-device AI
- Apple Watch support
- 12 languages
- Offline functionality
- Customizable vocabulary
- No subscriptions or ads
Read full descriptionHide full description
Prism AAC helps nonverbal children and adults talk. Tap pictures, build sentences, and hear them spoken aloud — in 25 languages, on iPhone, iPad and Apple Watch. Core communication is free and works without an account or an internet connection: communication boards with 22 categories, a keyboard with word prediction, saved phrases, device voices and cached speech, on-device AI, visual schedules, therapeutic games and emergency communication. No ads. No data harvesting. Your child's voice never depends on WiFi. PRISM AAC CLOUD — optional subscription US$4.99 per month adds a monthly allowance of 50,000 newly generated natural-voice speech characters and 100 cloud AI requests. Cached playback and device voices never use the allowance. The allowance resets on the first day of each month (00:00 UTC), and there are no overage charges. The same subscription works on iOS and on the web with one account. Boards, saved phrases, cached speech, device voices, on-device AI and emergency communication stay available without a subscription and after one ends. Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically each month unless it is cancelled at least 24 hours before the end of the current period, and it can be managed or cancelled in your Apple Account settings after purchase. WHY PRISM AAC - Privacy first: on-device AI keeps your words on your device - Works offline: boards, saved phrases and cached speech need no connection - Apple Watch: communicate directly from your wrist - 25 languages, including Simplified, Traditional and Hong Kong Chinese - Customizable vocabulary, grid size, themes and motor accommodations - Hands-free input: head tracking, switch scanning, gestures and voice - Caregiver tools: schedules, notes, insights and a caregiver PIN Terms of Use: https://synalux.ai/terms Privacy Policy: https://synalux.ai/privacy
Screenshots
Verdict
The clearest difference is price: Prism at Free against Proclaim AAC's $9.99. Prism also leads on update cadence (every 2 days vs every 4 days). On rating, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Prism is free to download; Proclaim AAC costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Proclaim AAC against 5.0 for Prism. Both are backed by a comparable volume of ratings — 4 and 2 respectively.
Proclaim AAC ships an update every 4 days, Prism every 2 days. The most recent releases landed on September 9, 2026 and September 15, 2026 respectively.
| Parameter | Proclaim AAC | Prism |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 5.0 (4 ratings) | 5.0 (2 ratings) |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 109 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Rob Gore | Synalux LLC |
Customer experience
Proclaim AAC
Prism
In-app purchases
Proclaim AAC
No in-app purchases
Prism
No in-app purchases








