Comparison

TD Snap® vs Fast AAC

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

Head to head
About

TD Snap®

This communication software assists individuals with speech and language disabilities by offering symbol-supported and text-based communication options. It features customizable page sets and editing tools, accessible via touch, eye gaze, and switch access. A subscription is required after a trial period.

Highlights
  • Symbol-supported and text-based page sets
  • Customizable editing tools
  • Touch, eye gaze, and switch access
  • Picture Communication Symbols library
  • Visual schedules and timers
  • Cloud-based content syncing
Features
Read full description

TD Snap® is a flexible, robust communication software for people with speech and language disabilities such as autism, cerebral palsy and aphasia. Created by Tobii Dynavox, a leader in augmentative and alternative communication (AAC), TD Snap provides a choice of evidence-based, professionally developed page sets designed to meet different communication needs and preferences, with both symbol-supported and text-based options. TD Snap includes easy-to-use editing tools to create a personalized experience, and is accessible via touch, eye gaze and switch access methods. A monthly subscription is required to enable speech following a 1-month trial period. Tobii Dynavox offers complementary resources to help communicators, caregivers, and professionals succeed with TD Snap. These resources can be found by visiting myTobiiDynavox.com or tobiidynavox.com. Have you purchased a Tobii Dynavox device and looking to use your companion TD Snap license on an iOS device? Download this app and log into myTobiiDynavox in the start-up wizard. Customizable TD Snap Page Sets: • Core First: A symbol-supported page set enabling a path to literacy at any stage of language development, now also available in High contrast • Motor Plan: A symbol-supported page set enabling efficient language acquisition at any age, custom designed for both touch and eye gaze • Express: A symbol-supported page set to help people express themselves using theme-based phrases and words, now also available in bilingual Spanish/English • Text: A page set for those who are literate or transitioning from symbol supports to literacy • Scanning: A page set for those who use scanning as their primary access method, • Aphasia: A page set to help adults with aphasia communicate while also supporting language recovery , now also available in bilingual Spanish/English • PODD*: A page set based on the Pragmatic Organization Dynamic Display vocabulary strategy, developed by AAC expert Gayle Porter • Gateway*: A page set based on the Gateway vocabulary strategy, developed by Joan Bruno *Denotes in-app purchase of an additional monthly subscription per page or symbol set. Developed by a third party. Powerful Set of Integrated TD Snap Tools: • Editing: An intuitive editing tool to help customize buttons to meet a communicator’s unique needs • Diversity: A variety of diversity settings that let you customize skin tone, hair shades, and more • PCS: A built-in library of over 75,000 Picture Communication Symbols translated into over 25 languages • Search: A search bar to locate words and symbols with an easy and accessible path to find them • Visual Supports: A set of supports like visual schedules, timers, and scripts • Google Assistant: An integrated tool enabling symbol-supported access to Google Assistant • QuickFires: A set of commonly used pre-programmed phrases to make communication smoother • myTobiiDynavox: A cloud-based resource for backing up, sharing, and syncing customized content. How Subscriptions Work Following the 1-month free trial, your Apple ID payment method on file will automatically be charged monthly unless you cancel 24 hours before the trial ends. Subsequent monthly payments will be charged to your Apple ID payment method 24 hours before the end of each period. Your subscriptions are managed in account settings on the App Store. TD Snap® is a trademark and registered trademark of Tobii Dynavox AB. Tobii Dynavox cannot guarantee compatibility of TD Snap with any non-Tobii Dynavox brand of hardware and will not offer technical support for compatibility issues. All downloads are governed by TD Snap License Agreement for Download.

About

Fast AAC

This app provides a voice for individuals with speech challenges, offering a customizable platform for communication. It features a large library of image tiles, flexible layouts, and predictive text to facilitate ease of expression. The app supports multiple languages and works offline, making communication accessible anywhere.

Highlights
  • 4000+ image tiles
  • Customizable grid layouts
  • Multilingual support
  • Time-saving predictions
  • Offline functionality
  • Light and dark modes
Features
Read full description

Fast AAC gives a voice to nonverbal individuals, helping them communicate with ease, independence, and confidence. Whether for Autism, Cerebral Palsy, stroke recovery, or other speech challenges, this customizable app makes communication accessible for everyone. Why Choose Fast AAC? * Build Your Vocabulary – Access 4000+ high-quality image tiles or add custom images. * Tailored Layouts – Choose from 1x2 up to 12x7 grids, setup frequently used phrases, and organize with folders. * User-Friendly Interface – Light and dark modes, customizable spacing, and flexible layouts. * Multilingual Support – Prebuilt tiles in English, French, Portuguese, Spanish and Filipino. * Time-Saving Predictions – Smart suggestions speed up conversations, predicting your next words based on your unique entries. * Always Secure – Backup and restore settings easily. * Works Offline – Communicate anywhere, no internet required. Download Fast AAC today and unlock the power of communication.

Screenshots

Fast AAC4 screens

Verdict

The call

The clearest difference is review sentiment: Fast AAC at 80% against TD Snap®'s 31%. Fast AAC also leads on monetization model (free vs subscription) and update cadence (every 3 days vs every 2 months). TD Snap®'s advantage is ratings volume (877 vs 8) and iOS requirement (13.0 vs 17). 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. TD Snap® sells 4 in-app purchases, starting at $4.99 per month and Fast AAC sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fast AAC holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: TD Snap® has 877 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 31% of TD Snap®'s written reviews are positive against 80% of Fast AAC's.

UpkeepUpdate frequency

TD Snap® ships an update every 2 months, Fast AAC every 3 days. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
TD Snap® versus Fast AAC: the parameters behind the verdict, then further details
ParameterTD Snap®Fast AAC
PriceFreeFree
Rating4.1 (877 ratings)4.4 (8 ratings) — better
Positive reviews30.7% of reviews80.0% of reviews — better
Number of ratings877 — better8
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree — better
DevicesiPadiPhone, iPad — better
Requires iOS13.0 — better17
Further details — not scored
Size3.4 GB406 MB
Age rating4+4+
DeveloperTobii Dynavox LLCMartin Saetre

Customer experience

TD Snap®

All ratings856 ratings
Positive77.1%
Neutral6.3%
Negative16.6%
Written reviews179 reviews
Positive30.7%
Neutral5.6%
Negative63.7%

Fast AAC

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Bugs and requests

TD Snap®

Reported bugs

4 issues
  • Voice disappearing after updates
  • Crashes on launch
  • Incompatibility with iPad Pro
  • Inability to restore purchased content

Requested features

5 requests
  • Ability to change undo symbol
  • Link to ACCIL image database
  • Ability to set user age for appropriate vocabulary
  • More robust core vocabulary
  • Easier grammar modeling

Fast AAC

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

TD Snap®

Subscriptions4
  • Gateway Monthly1 Month trial$4.991 Month
  • PODD Monthly1 Month trial$4.991 Month
  • Metacom Monthly1 Month trial$4.991 Month
Show 1 more
  • Speaking Upgrade Monthly1 Month trial$9.991 Month
1 purchases

Fast AAC

One-time1
  • Fast AAC Premium$12.99

Questions

Is TD Snap® free?
TD Snap® is free to download, with in-app purchases available.
Is Fast AAC free?
Fast AAC is free to download, with in-app purchases available.
Which has better reviews, TD Snap® or Fast AAC?
Fast AAC is rated higher. TD Snap® averages 4.1 out of 5 from 877 ratings, while Fast AAC averages 4.4 from 8 ratings.
Do TD Snap® or Fast AAC have ads?
Neither TD Snap® nor Fast AAC shows ads.
Which is updated more often, TD Snap® or Fast AAC?
TD Snap® ships an update every 2 months, and Fast AAC every 3 days. Most recently, TD Snap® was updated on November 6, 2026 and Fast AAC on November 5, 2026.

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