Proloquo4Text AAC vs PECS IV+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proloquo4Text AAC
This text-to-speech app assists individuals who cannot use their voice to communicate. It features a streamlined interface for easy typing, customizable layouts, and quick access to common phrases. Users can personalize voices, adjust appearance, and integrate with messaging and calling functions.
- Single-screen interface for easy typing
- Customizable screen layout and appearance
- Quick access to saved phrases
- Advanced word prediction
- Multiple natural-sounding voices
- Integration with messaging and calls
- Offline communication capability
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Proloquo4Text™ is a text to speech app for those who cannot rely on their voice to speak. The app is laid out on a single screen to reduce the effort of typing. The layout enables easy, daily conversation and quick access to your most common phrases. Personalize it to your needs and preferences, whether that’s through choosing from the many voices available, or through customizing your screen layout. Proloquo4Text is the leading AAC solution for literate adults, teens and children. It is used by people with a wide range of diagnoses, including developmental disabilities (like autism, apraxia, and cerebral palsy) and acquired disorders (like laryngectomy, ALS, stroke, or traumatic brain injury). Proloquo4Text can be used to produce speech by anyone who can type and spell. Communicate with ease • Use the single screen for easy access to words, phrases and keyboard • Switch easily between conversations, making it easy to answer a question in another conversation, without disrupting what you typed in the first conversation. • Decide when you speak with play, pause and speak-as-you-type • Adjust appearance (font, color, text size) to your preference and needs Reduce typing effort • Create, save and organize commonly used phrases • Make typing quicker with advanced, self-learning PolyPredix™ word prediction • Show what you typed with the fullscreen view and flip text features • Type once, then say it again with history and sentence prediction • Use keyboard shortcuts for quick access when using an external keyboard Choose your voice • Download, natural-sounding voices within Proloquo4Text. All premium Acapela voices are included in Proloquo4Text with no in-app purchase. • Add personality and humor to your conversations with free specialty voices • Choose from over 100 voices in 18 languages, so you can find the one that sounds most like you. Switch easily between languages. • Use my-own-voice, a voice-banking technology, to preserve and capture the essence of your own voice in synthetic speech. Share your world • Send email, messages, and tweets from Proloquo4Text • Write in Proloquo4Text and copy your text into another app • Listen to text by pasting into Proloquo4Text • Make phone and FaceTime video calls with Proloquo4Text. Take your voice anywhere • Proloquo4Text is available on both iOS and macOS. With iOS, you can use the app on your iPhone, iPad, and Apple Watch. The Mac version is a separate purchase on the Mac App Store. • Smoothly transition between devices, thanks to Proloquo4Text’s consistent navigation on iPhone and iPad • Easily access your commonly used phrases on Apple Watch, and just tap to show or speak them. You can customize the contents shown on the Watch from your iPhone. Accessibility features • Follow words as they are spoken with optional sentence or word highlighting • Optimized for Switch Control and VoiceOver • Communicate without an internet connection • Use multitasking functionality to run another app side-by-side on supported devices • Keep your devices in sync by easily backing up and restoring your customizations and stored phrases. AssistiveWare® is the developer of Proloquo2Go®, an award-winning symbol-based communication app that provides a voice to over 200,000 individuals around the world. Additional note: Educational institutions can get a 50% discount if they purchase 20 or more licenses through Apple’s Volume Purchase Program for Education.
PECS IV+
This communication app is no longer available for new users, with a successor app recommended. Current users will receive a final update and migration instructions to the new app, with a limited free trial period for the new service.
- Augmentative and alternative communication
- Speech and language development
- Communication aid
- Picture Exchange Communication System (PECS)
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PECS IV+ is no longer available to purchase for new users!! New users should purchase our latest communication app, PECSTalk™. In the coming weeks, an updated and final version of PECS IV+ will be released to current PECS IV+ users along with step-by-step instructions on how to transition from PECS IV+ to PECSTalk. Those that are interested will have the opportunity to migrate to Pyramid’s newest communication app, PECSTalk, at no charge for 90 days. After the 90 days, users will still be able to migrate to the new app, but a small fee will be charge. PECS IV+ users that do not transition to PECSTalk will continue to have use of the PECS IV+ app on their device, but Pyramid will no longer release future updates.
Screenshots
Verdict
The clearest difference is price: PECS IV+ at $99.00 against Proloquo4Text AAC's $119.99. PECS IV+ also leads on iOS requirement (10.3 vs 18.0). Proloquo4Text AAC's advantage is rating (4.7 vs 3.5) and review sentiment (90% vs 60%). On update cadence, ads, in-app purchases and monetization model 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
Proloquo4Text AAC costs $119.99 and PECS IV+ $99.00 up front. Neither carries in-app purchases, so what you see is what you pay.
Proloquo4Text AAC holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Proloquo4Text AAC has 910 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 90% of Proloquo4Text AAC's written reviews are positive against 60% of PECS IV+'s.
Proloquo4Text AAC ships an update every 3 months, PECS IV+ every 2 months. The most recent releases landed on September 21, 2026 and June 5, 2026 respectively.
| Parameter | Proloquo4Text AAC | PECS IV+ |
|---|---|---|
| Price | $119.99 | $99.00 — better |
| Rating | 4.7 (910 ratings) — better | 3.5 (12 ratings) |
| Positive reviews | 90.3% of reviews — better | 60.0% of reviews |
| Number of ratings | 910 — better | 12 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Apple Watch — better | iPad |
| Requires iOS | 18.0 | 10.3 — better |
| Further details — not scored | ||
| Size | 451 MB | 263 MB |
| Age rating | 4+ | 4+ |
| Developer | AssistiveWare | Pyramid Global Communication Technology LLC |
Customer experience
Proloquo4Text AAC
PECS IV+
Bugs and requests
Proloquo4Text AAC
Reported bugs
2 issues- Keyboard switching issue when using third-party keyboards
- Passcode locking the app unexpectedly
Requested features
4 requests- Ability to adjust voice tone more precisely
- Option to speak entire text box regardless of cursor position
- Integrated iOS keyboard with prediction
- Separate volume control for the app
PECS IV+
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Proloquo4Text AAC
No in-app purchases
PECS IV+
No in-app purchases









