Comparison

Proloquo4Text AAC vs Mega Key

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Mega Key

This app offers a custom large-format keyboard for iOS, featuring keys 40% larger than the default. It aims to enhance typing accuracy and ease for users with fine motor challenges, providing optimized layouts and multiple keyboard options.

Highlights
  • Large-format keys (40% larger)
  • Optimized layout for accuracy
  • Three keyboard choices (ABC, QWERTY, QWERTY-split)
  • Split keyboard option
  • Designed for fine motor difficulties
Features
Read full description

A custom large-format keyboard for iOS designed to improve accessibility for users with fine motor difficulties. Each key is approximately 40% larger than on the default keyboard, with an optimized layout making typing easier and more accurate. Word completion and next-word prediction features have been added to speed up typing. Includes three keyboard choices (ABC, QWERTY, and QWERTY-split (The keyboard is split into two halves, one of which is displayed on the screen at a time. You can switch between the halves)), as well as a keyboard with numbers and symbols.

Screenshots

Proloquo4Text AAC4 screens
Mega Key4 screens

Verdict

The call

The clearest difference is price: Mega Key at Free against Proloquo4Text AAC's $119.99. Mega Key also leads on iOS requirement (16.0 vs 18.0). Proloquo4Text AAC's advantage is rating (4.7 vs 4.0) and review sentiment (90% vs 64%). On ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Mega Key is free to download; Proloquo4Text AAC costs $119.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Proloquo4Text AAC holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Proloquo4Text AAC has 926 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 64% of Mega Key's.

UpkeepUpdate frequency

Proloquo4Text AAC ships an update every 3 months, Mega Key every 6 months. The most recent releases landed on September 30, 2026 and August 12, 2026 respectively.

Scorecard7 real differences · 3 level
Proloquo4Text AAC versus Mega Key: the parameters behind the verdict, then further details
ParameterProloquo4Text AACMega Key
Price$119.99Free — better
Rating4.7 (926 ratings) — better4.0 (12 ratings)
Positive reviews90.5% of reviews — better63.6% of reviews
Number of ratings926 — better12
Update frequencyEvery 3 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.016.0 — better
Further details — not scored
Size453 MB14 MB
Age rating4+4+
DeveloperAssistiveWareYanling Wang

Customer experience

Proloquo4Text AAC

All ratings926 ratings
Positive95.0%
Neutral2.9%
Negative2.1%
Written reviews63 reviews
Positive90.5%
Neutral1.6%
Negative7.9%

Mega Key

All ratings11 ratings
Positive72.7%
Neutral9.1%
Negative18.2%
Written reviews11 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

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

Mega Key

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Proloquo4Text AAC

No in-app purchases

None

Mega Key

No in-app purchases

Questions

Is Proloquo4Text AAC free?
Proloquo4Text AAC costs $119.99, with no in-app purchases.
Is Mega Key free?
Mega Key is free to download, with no in-app purchases.
Which has better reviews, Proloquo4Text AAC or Mega Key?
Proloquo4Text AAC is rated higher. Proloquo4Text AAC averages 4.7 out of 5 from 926 ratings, while Mega Key averages 4.0 from 12 ratings.
Do Proloquo4Text AAC or Mega Key have ads?
Neither Proloquo4Text AAC nor Mega Key shows ads.
Which is updated more often, Proloquo4Text AAC or Mega Key?
Proloquo4Text AAC ships an update every 3 months, and Mega Key every 6 months. Most recently, Proloquo4Text AAC was updated on September 30, 2026 and Mega Key on August 12, 2026.

Other comparisons