TD Snap Lite 4+

Communication app for AAC

Tobii Dynavox LLC

    • 4.2 • 202 Ratings
    • Free
    • Offers In-App Purchases

iPad Screenshots


Introducing TD Snap Motor Plan - symbol-supported page sets enabling efficient language acquisition via touch or eye gaze.

This lite version of TD Snap is for:
- Those who want to try TD Snap first, free of charge. This TD Snap Lite version comes without speech output. It’s possible to unlock the speech functionality through an in-app purchase at any time.
- Those who have purchased a Tobii Dynavox device and are looking to activate their companion TD Snap license (included with device purchases) on an iOS device.
TD Snap is a flexible communication software for those with speech and language disabilities such as autism, Down syndrome, Rett syndrome, cerebral palsy and aphasia. It offers professionals and families a choice of AAC solutions to meet different communication needs and preferences. TD Snap is accessible via touch, eye gaze or switch, offering clear speech output.

TD Snap Page Sets include:

•Core First: A symbol-supported page set enabling a path to literacy at any stage of language development
•Motor Plan: A symbol-supported page set enabling efficient language acquisition at any age, custom designed for both touch and eye gaze.
•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
•*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, developed by a third party.

Each page set comes with a powerful set of integrated tools to help simplify use and help communicators, caregivers and professionals succeed.

TD Snap Tools:

•Editing: An intuitive editing tool to help customize buttons to meet a communicator’s unique needs
•The Diverse Tone setting randomly applies a mixed selection of skin tones/hair color at the page set level (this is our new default option)
•The Single Tone setting applies your favorite choice from a selection of skin tones and/or hair colors to all people symbols at the page set level, with the click of a button
•The Symbol Editor lets you color individual symbols including skin tone, hair shades and more
•Search: A search bar to locate words and symbols with an easy-to-follow path to find them
•Behavior supports: A set of behavioral 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 managing your apps

TD Snap also has complementary resources, including support and training materials, to help communicators, caregivers, and professionals succeed with communication. These resources can be found by visiting or

What’s New

Version 1.27

- TD Snap now supports Acapela my-own-voice custom synthetic voices.
- The Motor Plan page set is now available in Australian English.
- Link Visualization can now be set on individual buttons.
- Bug fixes and improvements.

Ratings and Reviews

4.2 out of 5
202 Ratings

202 Ratings

AutismServiceDog ,

I have suggestions for improvement

It is cumbersome to model correct grammar due to the fact that a separate grammar button had to be pressed. Please follow Assistiveware and make it possible to long press a button to activate the grammar function. When this update is made this will be the best AAC app out there!

alicat1978 ,

Junk app

This is the single worst purchase I have ever made as far as apps are concerned. I have purchased this app TWICE for my daughter with special needs (it deletes my purchase history when updates occur). The latest problem is it is AGAIN trying to make me purchase the program in order to activate the speak feature. It is extremely frustrating because she has been using this program for 5 years and we are constantly encountering problems with it. I feel like it is too late in the game, so to speak, for her to learn a different program. Otherwise, I would immediately find a different effective AAC program and happily never look back.

StopTakingAdvantage ,

Speak Issues

I’ve purchased this app so my son can speak but it continues to try to make me purchase again. There is no info to contact anyone. I’ve seen other complaints about the same issue. I’m refuse to pay again. It was a struggle enough to purchase an iPad just for the use of him to talk and now the app is useless. Frustrated! I purchased the feature inside of the app and tried everything to unlock it. Guess I’ll have to refuse the charge at my bank. So many Autism families get taken advantage of because people know we would move the earth for our kids. Just feels like another rabbit hole ASD parents get sent down.

App Privacy

The developer, Tobii Dynavox LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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