Comparison

Number Therapy vs Speech Assistant AAC

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

Head to head
About

Number Therapy

Practice understanding, saying, and typing numbers to improve essential communication skills. This app helps stroke survivors and individuals with cognitive disorders build independence with number-related tasks like dates, money, and phone numbers.

Highlights
  • Practice understanding, saying, and typing numbers
  • Covers dates, money, phone numbers, and more
  • Thousands of unique exercises
  • Customizable interface
  • Progress tracking and recommendations
  • Email progress reports for therapists
Read full description

Numbers communicate so much, yet they are often left out of communication therapy. Now stroke survivors can practice understanding, saying, and typing numbers at home to improve these essential life skills. ***Try for FREE with Number Therapy Lite*** “I really like it! The money and phone numbers – that’s what I need to practice.” – Sarah, stroke survivor with aphasia Age, dates, phone numbers, addresses, money, time, measurements, fractions, weight, years – numbers are everywhere and so important. Be more independent with communication with stronger number communication skills. Would you be able to understand, write down, and tell someone this phone message? “Your appointment is at 3:15 p.m. on August 3rd, 2015 at 1650 18th Avenue. Bring $5. Please call back to confirm at 785-5662.” Work on all these number skills and more with the evidence-based Number Therapy app! 30 categories of numbers including: *Single Digits *Double Digits *Triple Digits *Four Digits *Time *Money *Phone Numbers (add your own!) *Ordinals *Fractions Thousands of unique exercises you can use anywhere. Work at your own pace to practice the skills that matter to you. Great for cognitive disorders such as impaired working memory or auditory memory, too! Listen to long numbers and type them in - it's harder than it sounds. Train the ear to listen with this app. This app has the same highly customizable, clean, intuitive interface you’ve come to love in Tactus Therapy apps. Developed in conjunction with people with aphasia, this app is designed to help you get the intensity of practice you need in a way that is easy to use. Number Therapy also has a feature to give you recommendations for which level and settings you should use based on your score. See how easy it is to make progress when you're working at the right level for you! "Number Therapy is a game changer for me. I love it." - Trish, stroke survivor with aphasia Speech-Language Pathologists: use this app to make the communication of numbers a part of your therapy plan for people with aphasia or other disorders. Three unique activities address auditory and reading comprehension, verbal expression, and written expression. Your clients can use the built-in hints, cues, and audio recording to be successful, then e-mail you their results in a professional report so you can track their progress over time. Ideal for use in the clinic and at home, add Number Therapy to your therapy app collection! *Please note: this app does NOT address math skills or equations. It focuses on the communication of numbers, not calculations.

About

Speech Assistant AAC

This text-to-speech app assists individuals with speech impairments by allowing them to create custom buttons with saved phrases and symbols. It offers a fully customizable interface, various voice options including AI clones, and can be used during phone calls. The app supports multiple user profiles and iCloud backups for easy data transfer.

Highlights
  • Customizable buttons with phrases and symbols
  • Multiple voice options including AI clones
  • Full-screen mode for large font display
  • Category and subcategory organization
  • User profiles for multiple individuals
  • iCloud backup and transfer
Features
Read full description

Speech Assistant AAC is a text-to-speech app designed for people who are speech impaired, for example due to Aphasia, MND/ALS, Autism, Stroke, Cerebral Palsy or other speech problems. With the app you can create categories and save phrases on buttons for quick access and easy communication. You can also type messages using the iOS keyboard. The app is affordable with a one-time payment and no subscription. Key features • Easy to use and fully customizable to your needs and preferences. • Categories and subcategories to organize your phrases. • History feature to quickly access previously entered phrases. • Option to add symbols, emoji or photos to the buttons. • Full screen mode to display your messages in large font. • Autocomplete feature to display phrase suggestions in a drop-down list. • Tabs for multiple conversations. • Designed for iPhone and iPad, supports both portrait and landscape orientation. • Supports Apple Watch. • Backup to iCloud, Mail or AirDrop. Voices • You can choose a voice from any of the iOS system voices. • Supports ElevenLabs voices, giving you the option to use highly realistic AI professional voice clones. • Supports Apple's Personal Voice. • Option to create voice recordings for the buttons and to import voice recordings. Phone calls • The app can also be used while making Phone and FaceTime calls. • This works with iOS system voices and with iOS 18 also with ElevenLabs voices and regular recordings (app setting). Categories and phrases • Add, change or delete your own (sub)categories and phrases. • You can create an unlimited number of categories to organize your phrases for quick access. • Create user profiles with their own categories, phrases and settings for multi-language support or different individuals. • Easily edit category and phrase buttons with a long press. • With Backup to iCloud or AirDrop you can transfer your categories and phrases to another iPhone/iPad. Fully Customizable • The size of the buttons, the textbox and the text can be adjusted. • The app has various color schemes and you can also create a personal color scheme. • You can change the order of the buttons with drag and drop. Full screen • Show your message full screen with a very large font. • Useful for communicating in a noisy environment. • You can rotate the text to show your message to the person opposite of you. Speech • The rate and pitch of the speech can be adjusted. • Option to speak each Word or Character directly while typing. • Optional highlighting of the spoken words. • Pause and resume speaking by tapping the speak button (optional setting). Apple Watch • The Watch app can especially be useful for communicating short messages. • On the go, you don't have to pick up your phone and can quicky communicate with the app on your wrist. Other features • Button to share your message to mail, text and social media. • Connect a bluetooth keyboard and create shortcuts for actions. • A custom keyboard can be enabled in the settings with customizable size, color and layout. • Abbreviations expansion to reduce keystrokes. • Attention sound button on Main and Full screen. • Option to select symbols from the set of 3400 Mulberry Symbols (mulberrysymbols.org). About the app • This app is developed by ASoft. • The app does not collect any data, so all your conversations stay private. • One-time payment, there is no subscription fee. • The app has won an innovation award: The Vodafone Mobiles For Good Challenge. • The app does not require an internet connection. • For feedback or questions, please contact: speechassistant@asoft.nl. • On www.asoft.nl you can find more information such as a user manual.

Screenshots

Number Therapy4 screens
Speech Assistant AAC4 screens

Verdict

The call

The clearest difference is update cadence: Speech Assistant AAC at every 3 weeks against Number Therapy's every 4 months. Speech Assistant AAC also leads on price ($24.99 vs $29.99) and chart position (#22 vs unranked). Number Therapy's advantage is rating (4.7 vs 4.5) and iOS requirement (9.0 vs 15.5). On review sentiment, ratings volume, ads and in-app purchases 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

Number Therapy costs $29.99 and Speech Assistant AAC $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Number Therapy holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 268 and 104 respectively. Written reviews point the same way: 83% of Number Therapy's written reviews are positive against 81% of Speech Assistant AAC's.

UpkeepUpdate frequency

Number Therapy ships an update every 4 months, Speech Assistant AAC every 3 weeks. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

Scorecard6 real differences · 5 level
Number Therapy versus Speech Assistant AAC: the parameters behind the verdict, then further details
ParameterNumber TherapySpeech Assistant AAC
Price$29.99$24.99 — better
Rating4.7 (268 ratings) — better4.5 (104 ratings)
Positive reviews83.3% of reviews — better81.3% of reviews
Number of ratings268 — better104
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#22 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS9.0 — better15.5
Further details — not scored
Size7 MB131 MB
Age rating4+4+
DeveloperTactus Therapy Solutions Ltd.Ton Schalke

Customer experience

Number Therapy

All ratings266 ratings
Positive93.6%
Neutral4.5%
Negative1.9%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

Speech Assistant AAC

All ratings104 ratings
Positive87.5%
Neutral6.7%
Negative5.8%
Written reviews91 reviews
Positive81.3%
Neutral9.9%
Negative8.8%

Bugs and requests

Number Therapy

Not enough reviews yet to summarise bugs or requests.

Speech Assistant AAC

Reported bugs

17 issues
  • Default category button cannot be deleted
  • Images with transparent backgrounds turn white
  • Color picker does not work
  • Blank word slot in new subcategories cannot be deleted
  • Recorded or imported audio on buttons doesn't play on phone calls
Show 12 more
  • Cannot send voice message to WhatsApp
  • App crashes on iOS 17.5.1 on iPhone XS
  • Hex codes keep changing after input
  • Return key to send/speak disabled in latest update
  • Syncing from iPad to iPhone not happening
  • Categories don't stay on conversation when switching tabs
  • App keeps crashing/freezing
  • Option to not read directly seems to no longer work
  • Speech button not working
  • Syncing between iPhone and iPad not working
  • App crashes when another app uses speaker
  • Voice output not heard during phone calls

Requested features

42 requests
  • Ability to move sub-categories
  • Toggle for reading category names
  • Sub-sub-categories
  • Option to choose image files
  • Color picker for customization
Show 37 more
  • Delete blank word slot in subcategories
  • Send text to speech to WhatsApp
  • Shortcut to Control Panel
  • Ability to reset element sizes
  • Ability to clone own voice
  • Drag option for moving positions
  • Syncing between devices
  • More symbols for basic words
  • Control AI devices (Echo, Google)
  • Child voices for TTS
  • Option to use only iPhone/iPad speaker easily
  • Better autocorrect
  • Fix mispronunciation of words
  • Ability to print phrases from app
  • Change font size of settings/documentation
  • More than 5 choices in 'Clear/Restore'
  • Ability to create sub-categories
  • Record/import audio on phone calls
  • Full screen mode
  • Option for UK female voice
  • Draw within the app and convert to text
  • Customize buttons with color
  • Add own voice to phrases
  • Eye control app
  • Make pictures on text buttons appear in read-out windows
  • Use own pre-recorded voice
  • Text can be shown in large print
  • Add a lock on app configuration
  • Use own voice for TTS
  • More advanced audio options
  • Better integration with other apps
  • Option to not read directly when disabled
  • Full functionality access for recording sessions
  • Return key to send/speak functionality
  • Sync categories with conversation tabs
  • Ability to delete default category button
  • Support for other languages

In-app purchases

None

Number Therapy

No in-app purchases

None

Speech Assistant AAC

No in-app purchases

Questions

Is Number Therapy free?
Number Therapy costs $29.99, with no in-app purchases.
Is Speech Assistant AAC free?
Speech Assistant AAC costs $24.99, with no in-app purchases.
Which has better reviews, Number Therapy or Speech Assistant AAC?
Number Therapy is rated higher. Number Therapy averages 4.7 out of 5 from 268 ratings, while Speech Assistant AAC averages 4.5 from 104 ratings.
Do Number Therapy or Speech Assistant AAC have ads?
Neither Number Therapy nor Speech Assistant AAC shows ads.
Which is updated more often, Number Therapy or Speech Assistant AAC?
Number Therapy ships an update every 4 months, and Speech Assistant AAC every 3 weeks. Most recently, Number Therapy was updated on October 24, 2026 and Speech Assistant AAC on October 26, 2026.

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