Comparison

Predictable vs Flexspeak AAC (VPP)

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

Head to head
About

Predictable

This text-to-speech application assists individuals with communication challenges by offering smart word prediction, customizable phrases, and diverse access methods. It supports multiple languages and integrates with various voice options for personalized communication.

Highlights
  • Smart word prediction
  • Customizable phrases and categories
  • Multiple access methods (head tracking, switch access)
  • Multi-language support (43 languages)
  • Diverse speech and voice options
  • Appearance customization
Features
Read full description

Predictable is a multi-award winning text-to-speech app for people with conditions such as ALS/MND, autism, cerebral palsy, Down's syndrome, and more. It aims to make it easier and quicker to communicate, using a range of access methods, rate enhancement features and customisation options. Word Prediction Using smart word prediction technology, the app makes speaking out a text-based message easy. Predictable learns from your pattern of use and predicts what you will type next, making typing easier and more efficient. Phases and categories Save and organise phrases that you need quick access to in a simple grid format. Further customise your phrases by adding symbols, images, audio recordings, links and more. Shortcuts Choose from a wide range of useful and exciting features such as notes, share, translate, chatGPT and draw to customise your keyboard screen to include features that you want to use. Attach these to keyboard keys, hot corners, head tracking gestures or external keyboard shortcuts. The possibilities are endless! Multi Language Switch between any of our 43 languages* to create your personalised bilingual set up. You are able to choose a primary and secondary language and seamlessly transition between both on the go, with appropriate keyboards and voices selected for both. Languages supported include: Arabic, Bangla, Bulgarian, Catalan, Chinese, Croatian, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Maithili, Malay, Marathi, Norwegian (Bokmal), Persian, Polish, Portuguese, Punjabi, Romanian, Russian, Slovak, Spanish, Swedish, Tamil, Telugu, Thai, Turkish, Ukrainian, Vietnamese, Gujarati, Urdu, Somali *Some languages only offered with online voices Speech and Voice Options Compatible with standard iOS voices, including the enhanced voices available to download and your iOS personal voice. You can also use your voice-banked voice from ModelTalker, Acapela, SpeakUnique and The Voice Keeper. Accessibility Predictable offers a wide range of access methods and accessibility settings including: Direct touch features to handle accidental selection Screen tap - a scanning method where you touch the screen for selection and/or progression Switch access - accessible via Bluetooth switch box + switches (compatible with Therapy Box Switch Box and RJ Cooper Switch Interface) as well as Head tracking face gestures. Head tracking - use facial recognition to interact with the app with no calibration or extra hardware required. Auditory preview - hear the onscreen text before selection. Scanning - Build your own, is a brand new access method in Predictable. Customise your own scanning method by combining timer, screen tap, switch access and gestures. Appearance Customise the layout and appearance to truly optimise the app to your preferences by changing the layout, font size, colours and more. Different keyboard options (including QWERTY, Ten Key, Apple and Bluetooth) and different templates (including Dark, High Contrast and Low vision) are available to make this customisation clear and simple. Web Platform Log in remotely and manage your settings and grid content from our web platform. The web platform is compatible with the myMessageBanking.com format to make importing easy. Support User guides are available on your app, and on the Therapy Box website. Send any questions to support@therapy-box.co.uk. You can find more about Predictable at https://therapy-box.co.uk/predictable

About

Flexspeak AAC (VPP)

This app provides augmentative and alternative communication (AAC) for individuals who have difficulty speaking. It offers multilingual support, AI-powered message prediction, and extensive customization options to facilitate clear and efficient communication.

Highlights
  • Multilingual support (Spanish, Vietnamese, Nepali, Mandarin)
  • AI-powered message prediction
  • Customizable vocabulary
  • Remote editing and group sharing
  • Extensive image library
  • Seamless auto-sync across devices
Features
Read full description

Experience communication with Flexspeak – the cutting-edge augmentative and alternative communication (AAC) app for people who cannot speak or have difficulty speaking. COMMUNICATE YOUR WAY - Access multiple languages including Spanish, Vietnamese, Nepali, and Mandarin - Use intuitive AI prediction and quick customization features - Select words to create messages and add custom vocabulary with ease POWERFUL FEATURES - Multilingual Support: Switch between languages effortlessly - Remote Editing & Group Sharing: Quickly share folders - AI Prediction: Transform partial phrases into complete sentences with AI - Easy Customization: Personalize your vocabulary to fit your needs - Seamless Auto-Sync: Access your settings across all devices - Extensive Image Library: Express yourself with symbols and photos - In-App Translations: Translate buttons to other languages with one tap DESIGNED FOR DIVERSE NEEDS - Designed for individuals with autism, Down syndrome, cerebral palsy, and non-speaking individuals - User-friendly interface makes communication efficient and accessible Join the growing Flexspeak community and explore new possibilities for self-advocacy, expression, and connection.

Screenshots

Predictable4 screens
Flexspeak AAC (VPP)4 screens

Verdict

The call

The clearest difference is price: Predictable at $159.99 against Flexspeak AAC (VPP)'s $299.99. Predictable also leads on ratings volume (203 vs 1). Flexspeak AAC (VPP)'s advantage is rating (5.0 vs 4.5) and update cadence (weekly vs every 2 months). On ads, in-app purchases, monetization model 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

Predictable costs $159.99 and Flexspeak AAC (VPP) $299.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Flexspeak AAC (VPP) holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Predictable has 203 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Predictable ships an update every 2 months, Flexspeak AAC (VPP) weekly. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
Predictable versus Flexspeak AAC (VPP): the parameters behind the verdict, then further details
ParameterPredictableFlexspeak AAC (VPP)
Price$159.99 — better$299.99
Rating4.5 (203 ratings)5.0 (1 ratings) — better
Positive reviews67.7% of reviews
Number of ratings203 — better1
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size1.7 GB236 MB
Age rating4+12+
DeveloperPrentke Romich CompanyFlexspeak

Customer experience

Predictable

All ratings203 ratings
Positive86.2%
Neutral6.9%
Negative6.9%
Written reviews65 reviews
Positive67.7%
Neutral6.2%
Negative26.2%

Flexspeak AAC (VPP)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Predictable

Reported bugs

9 issues
  • App crashes frequently
  • Password reset emails not received
  • App freezes
  • Acapela voice not working
  • Cannot copy message to clipboard
Show 4 more
  • Twitter integration crashes/invalid token
  • Emailing messages causes crash
  • Lost Australian Lee voice after update
  • Antisemitism in word prediction

Requested features

15 requests
  • Add child's voices
  • Edit size of message window in grid view
  • Adjust font size of message window
  • Edit color of font or background of individual cells
  • Edit individual cells for speaking on touch vs. automatic
Show 10 more
  • Add print option
  • Allow hiding of settings/edit button without guided access
  • Improve transition to phrase banks
  • Adjust font size in suggestions
  • Enable cursor for editing
  • Add user control for saving history (on/off)
  • Improve switch access functionality
  • Add more male voice options
  • Allow customization of keypad size
  • Add full stop and comma keys to main keyboard

Flexspeak AAC (VPP)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Predictable

No in-app purchases

None

Flexspeak AAC (VPP)

No in-app purchases

Questions

Is Predictable free?
Predictable costs $159.99, with no in-app purchases.
Is Flexspeak AAC (VPP) free?
Flexspeak AAC (VPP) costs $299.99, with no in-app purchases.
Which has better reviews, Predictable or Flexspeak AAC (VPP)?
Flexspeak AAC (VPP) is rated higher. Predictable averages 4.5 out of 5 from 203 ratings, while Flexspeak AAC (VPP) averages 5.0 from 1 ratings.
Do Predictable or Flexspeak AAC (VPP) have ads?
Neither Predictable nor Flexspeak AAC (VPP) shows ads.
Which is updated more often, Predictable or Flexspeak AAC (VPP)?
Predictable ships an update every 2 months, and Flexspeak AAC (VPP) weekly. Most recently, Predictable was updated on September 19, 2026 and Flexspeak AAC (VPP) on September 20, 2026.

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