Comparison

Speech AAC vs Prism AAC Browser

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Speech AAC

Features
Read full description

Speech AAC Assist is a professional-grade Augmentative and Alternative Communication (AAC) app designed for people with speech disabilities, autism, ALS, stroke recovery, cerebral palsy, and anyone who needs a voice. COMMUNICATE INSTANTLY Tap words to build sentences and speak them aloud using real human voices (Adam & Liza) or your device's built-in text-to-speech. Every word is spoken clearly and naturally. REAL HUMAN VOICES Choose between two professionally recorded voices — Adam and Liza — with over 3,700 words recorded by real people. When a word isn't recorded, the app seamlessly falls back to text-to-speech so you're never left silent. YOUR BOARDS, YOUR WAY Build custom communication boards for every situation — medical appointments, school, home, social settings, and more. Pin your most-used boards to the top for instant access. Includes 12 professionally designed starter boards based on AAC research: • Core Vocabulary (36 high-frequency words covering 80% of daily communication) • Quick Phrases • Feelings & Emotions • Medical & Health • Food & Drink • People & Family • Places & Activities • Emergency (speaks immediately — no extra taps) QUICK ACCESS BAR Six emergency communication buttons — Help, Yes, No, Stop, Pain, I Need — are always visible on screen and speak instantly with one tap. No building a sentence required. FULLY ACCESSIBLE SpeakEasy AAC is built from the ground up for people with disabilities: • Section 508 and WCAG 2.1 AAA compliant • Full VoiceOver support with labels, hints, and traits on every element • Switch Control compatible • Auto-scan mode for single-switch users • Large touch targets (minimum 60Ɨ60pt everywhere) • High contrast mode • Adjustable button size, font size, and emoji size • Reduce Motion support • Caregiver PIN lock to protect settings KEYBOARD INPUT Prefer to type? Switch to keyboard mode and type anything — SpeakEasy will speak it instantly. Great for literate users who need faster input. MEDICATION REMINDERS Never miss a dose. Set up daily medication reminders with customizable times and get notified right on your device. COMMUNICATION LOG Track progress over time with a built-in communication log. See daily and weekly stats, most-used words, and share reports with therapists and caregivers via CSV export. WORKS OFFLINE Everything works completely offline. No internet connection required. No accounts. No subscriptions. Your communication is private and always available. CAREGIVER & THERAPIST FRIENDLY PIN-protected settings keep the app configured the way you need it. Caregivers and speech-language pathologists can set up boards, customize vocabulary, and lock the interface so users always see the right layout. CUSTOMIZABLE EVERYTHING • 6 background color themes • Adjustable speech rate and pitch • 4 word organization modes • Multiple language support • Dark mode compatible SpeakEasy AAC Assist is built with love by PayneBrain Studios — a team dedicated to making technology work for everyone.

About

Prism AAC Browser

Features
Read full description

Prism Browser is a clinical web browser built for healthcare providers and AAC users. Designed for people who navigate the web via head tracking, switch scanning, dwell click, and voice commands. • AAC Accessibility — Head tracking, dwell click, switch scanning, voice commands • Clinical Resources — PubMed, CDC, WHO, NIH, MedlinePlus, AAP • HIPAA Safeguards — PHI redaction, session isolation, content blocking, Face ID • On-Device AI — Synalux Prism models, entirely on your device • Content Blocking — Built-in ad and tracker blocker • No Login Required — Browse freely without an account Free to download and use.

Screenshots

Speech AAC4 screens
Prism AAC Browser3 screens

Verdict

The call

The clearest difference is in-app purchases: Prism AAC Browser at none against Speech AAC's 6. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Speech AAC sells 6 one-off in-app purchases. Prism AAC Browser asks for nothing beyond the download.

Scorecard1 real difference Ā· 5 level
Speech AAC versus Prism AAC Browser: the parameters behind the verdict, then further details
ParameterSpeech AACPrism AAC Browser
PriceFreeFree
Update frequency—Every 2 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.616.0 — better
Further details — not scored
Size129 MB9 MB
Age rating12+17+
DeveloperCarlton Payne IIISynalux LLC

In-app purchases

6 purchases

Speech AAC

One-time6
  • Small Tip$0.99
  • Medium Tiip$4.99
  • Large Tip$9.99
Show 3 more
  • Huge Thank You!$19.99
  • Champion!$49.99
  • Legend!$99.99
None

Prism AAC Browser

No in-app purchases

Questions

Is Speech AAC free?
Speech AAC is free to download, with in-app purchases available.
Is Prism AAC Browser free?
Prism AAC Browser is free to download, with no in-app purchases.
Do Speech AAC or Prism AAC Browser have ads?
Neither Speech AAC nor Prism AAC Browser shows ads.

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