Comparison

Predictable Flex vs IconSpeak AAC

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

Head to head
About

Predictable Flex

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 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

IconSpeak AAC

This app helps individuals with speaking difficulties communicate by tapping icons to build sentences that are spoken aloud. It offers customization options for icons and layouts, and can print boards for offline use. The core app is free, with an optional Pro subscription for advanced features.

Highlights
  • Tap icons to build sentences
  • Clear, natural voice output
  • Customizable icons and labels
  • Printable choice boards and icons
  • Offline functionality
  • Multiple user profiles (Pro)
  • Type to Talk feature
Features
Read full description

Some people think in full sentences and just can't say them out loud. IconSpeak gives them a way to be heard. IconSpeak is an AAC (augmentative and alternative communication) app for children and adults with speaking difficulties — autism, apraxia, Down syndrome, cerebral palsy, stroke, ALS, and temporary loss of speech. Tap icons to build a sentence, then tap the sentence strip to speak it aloud in a clear, natural voice. It was built by a dad for his son. Everything in it exists because a real family needed it. HOW IT WORKS - Tap icons to build a sentence, then tap the strip to speak it aloud - Or tap a single icon to hear it on its own — no sentence required. Good for early learners and quick answers. - Edit any icon: its label, its image, or what it says out loud - Browse by category, or search when you know what you want - Type to Talk for anyone who spells — type a phrase, hear it spoken - Choice boards for this-or-that questions and structured practice PRINT WHAT'S ON THE SCREEN The digital board and the paper board shouldn't be two different systems. - Print individual icons, or entire choice boards - Set your own print layout and grid — icons per page and how large - Size them for a binder, a classroom wall board, or a lanyard - Send home paper sets that match the app exactly, so a person sees the same symbol at school, at home, and on paper - Print custom photo icons, not just library symbols - A no-tech backup for a dead battery or a device left in the car BUILT FOR REAL DAYS - Works fully offline — no signal needed at school or an appointment - Cloud sync and backup across your iPhone and iPad - Multiple voices and multiple languages - Adjustable grid, colors, and layout so the board fits the person - No ads, ever. No account required to start. FREE FOREVER The core app is free — not a trial, not a countdown. Icon library and categories, single-tap speech, sentence strip, Type to Talk, choice boards, printing with custom layouts, one profile, offline, and sync. ICONSPEAK PRO For families, classrooms, and clinicians who need the board to match a specific person. - Custom icons from your own photos — real faces, real foods, real places - Custom categories, organized your way - Multiple user profiles on one device - Sentence history, so a favorite phrase is one tap away Pro is $4.99 per month or $49.99 per year. FOR SLPs AND EDUCATORS Custom icons and multiple profiles make it practical to run a caseload from one iPad, and printable boards let you send home a paper set that mirrors the digital one — consistent symbols across school, home, and clinic. We'd love to hear from you: wearebubbystudio@gmail.com A NOTE FROM US IconSpeak is made by Bubby Studio, a tiny independent studio named after the nickname of our founder's son, Ezekiel. We built the app we wanted to exist for him. If something is missing, tell us — we read every email. SUBSCRIPTION DETAILS IconSpeak Pro is a monthly ($4.99) or annual ($49.99) auto-renewing subscription. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged within 24 hours prior to the end of that period. Manage or cancel anytime in your Apple Account settings. Privacy Policy: https://www.bubbystudio.com/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Predictable Flex4 screens
IconSpeak AAC4 screens

Verdict

The call

The clearest difference is update cadence: Predictable Flex at daily against IconSpeak AAC's every 3 weeks. On price, 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

Both are free to download. Predictable Flex sells 2 in-app purchases, starting at $9.99 per month and IconSpeak AAC sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Predictable Flex ships an update daily, IconSpeak AAC every 3 weeks. The most recent releases landed on November 1, 2026 and November 13, 2026 respectively.

Scorecard1 real difference · 9 level
Predictable Flex versus IconSpeak AAC: the parameters behind the verdict, then further details
ParameterPredictable FlexIconSpeak AAC
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyDaily — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better16.4
Further details — not scored
Size1.7 GB42 MB
Age rating4+4+
DeveloperPrentke Romich CompanyScott Davis

In-app purchases

2 purchases

Predictable Flex

Subscriptions2
  • Monthly Subscription$9.991 Month
  • Yearly Subscription$99.991 Year
2 purchases

IconSpeak AAC

Subscriptions2
  • IconSpeak Pro Monthly$4.991 Month
  • IconSpeak Pro Annual$49.991 Year

Questions

Is Predictable Flex free?
Predictable Flex is free to download, with in-app purchases available.
Is IconSpeak AAC free?
IconSpeak AAC is free to download, with in-app purchases available.
Do Predictable Flex or IconSpeak AAC have ads?
Neither Predictable Flex nor IconSpeak AAC shows ads.
Which is updated more often, Predictable Flex or IconSpeak AAC?
Predictable Flex ships an update daily, and IconSpeak AAC every 3 weeks. Most recently, Predictable Flex was updated on November 1, 2026 and IconSpeak AAC on November 13, 2026.

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