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Prism AAC — Clinical Evaluation
Free augmentative communication with on-device AI. No per-device cost. No HIPAA risk. 23 languages. Open source.
How Prism AAC Compares
| Feature | Prism AAC | TouchChat | Proloquo2Go | TD Snap | CoughDrop |
|---|---|---|---|---|---|
| Price | Free / $19 / $49 / $99 | $299.99 | $249.99 | $299.99 | $10/mo |
| On-device AI | ✅ 1.7B llama.cpp | ❌ | ❌ | ❌ | ❌ |
| HIPAA (no BAA needed) | ✅ | ❌ | ❌ | ⚠️ partial | ⚠️ partial |
| Languages | 23 | 12 | 18 | 14 | 8 |
| AI Chat (cloud + on-device) | ✅ | ❌ | ❌ | ❌ | ❌ |
| Per-user phrase learning | ✅ ACT-R spreading activation | ❌ | ❌ | ❌ | ❌ |
| Math / school subjects | ✅ 19 subject keyboards | ❌ | ❌ | ❌ | ❌ |
| Apple Watch standalone | ✅ | ❌ | ❌ | ❌ | ❌ |
| Hands-free (head/hand tracking) | ✅ | ⚠️ partial | ⚠️ partial | ✅ | ⚠️ partial |
| Therapeutic games | 12 games | ❌ | ❌ | ❌ | ⚠️ partial |
| Emergency SOS | ✅ SMS + voice + AI | ❌ | ❌ | ❌ | ❌ |
| Caregiver corrections → training data | ✅ | ❌ | ❌ | ❌ | ❌ |
| Open source | ✅ AGPL-3.0 | ❌ | ❌ | ❌ | ✅ |
| Free tier (life-safety) | ✅ forever | ❌ | ❌ | ❌ | ✅ limited |
| Web app (no install) | ✅ | ❌ | ❌ | ❌ | ✅ |
| Voice cloning | ✅ paid | ❌ | ⚠️ partial | ❌ | ❌ |
| PDF / OCR reader | ✅ | ❌ | ❌ | ❌ | ❌ |
| Comfort Player (hospital) | ✅ | ❌ | ❌ | ❌ | ❌ |
Comparison reflects publicly available product information as of May 2026. Competitors may add features over time. Source: github.com/dcostenco/prism-aac
Cost Savings Calculator
ROI Calculator
Current annual spend
$15,000
With Prism AAC (free tier)
$0
Annual savings
$15,000
HIPAA Compliance
HIPAA Compliance Summary
Prism AAC is designed for HIPAA compliance without requiring a Business Associate Agreement for the core AAC speech path.
PHI at inference layer
On-device 1.7B model via llama.cpp Metal — zero network calls for speech path
Encryption at rest
AES-256-GCM with PBKDF2 (600,000 iterations) + per-record random salt
Audit logging
Immutable PostgreSQL audit tables (BEFORE UPDATE/DELETE triggers prevent mutation)
Data Loss Prevention
6-pattern DLP scanner: SSN, ITIN, credit card, MRN, email, phone
Emergency access
Break-glass with time-limited grant (30 min), mandatory justification, real-time admin alert
Patient isolation
Per-patient IDOR prevention via email-matched ownership checks on all clinical queries
Voice recordings
Stored in browser IndexedDB — never uploaded to any server
Caregiver notes
Encrypted locally before optional cloud sync
BAA requirement
Not required for on-device speech path (no PHI leaves the device)
Clinical Alignment
Clinical Alignment — ABA + AAC
Designed by BCBAs for ABA practice workflows. Every feature maps to evidence-based clinical standards.
BACB Task List (5th Ed)
Verbal operant tracking across mand, tact, intraverbal, echoic, and textual response classes
FCT Support
Functionally equivalent communication training — picture tiles replace problem behavior with communication
AAC Ethics
AAC access is NEVER restricted as a consequence — aligned with BACB Ethics Code 2.01 (dignity)
Data Collection
Built-in trial data, ABC recording, prompt-level tracking, and graph targets with decision rules
Per-User Learning
ACT-R spreading activation adapts phrase ranking to each child — recency x frequency x context
Assessment Integration
VB-MAPP, ABLLS-R, AFLS, Essentials for Living, PEAK templates via Synalux clinical module
Caregiver Training
Caregiver corrections automatically become training data — no separate labeling workflow needed
Supervision
Supervision logs, session cosigning, and credential verification built into the practice management platform
Plans
Free
$0forever
- +AAC symbol board + speech
- +12 games (3 free)
- +On-device 1.7B AI
- +23 languages
- +Apple Watch
- +Emergency SOS
Standard
$19/mo
- +Everything in Free
- +Cloud AI (14B model)
- +2,000 requests/day
- +Messaging + contacts
- +Marketplace
- +Email support
Advanced
$49/mo
- +Everything in Standard
- +QwQ-32B reasoning
- +Voice cloning
- +Clinical reports
- +Priority support
Enterprise
$99/mo
- +Everything in Advanced
- +Unlimited cloud
- +HIPAA BAA included
- +SSO + dedicated SLA
- +Custom deployment
All paid plans include 14-day free trial. Prices shown in USD — view local pricing.
Ready to evaluate?
Download the app, try it with your clients, and see the difference.
Questions? Email support@synalux.ai