TD Snap® vs ChatterBoards AAC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
ChatterBoards AAC
This app provides an affordable and user-friendly augmentative and alternative communication (AAC) solution for individuals with speech or language difficulties. It allows for the creation of custom vocabulary and phrase boards with extensive customization options for buttons and audio.
- Customizable vocabulary and phrase boards
- Progressive board levels for vocabulary building
- Multiple user profiles
- Customizable buttons with text, color, image, and audio
- Text-to-Speech with multiple voices and languages
- Keyboard input mode
- Board sharing functionality
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The cheapest AAC app compared to others offering the same features. Chatterboards was professionally developed, in collaboration with Speech Therapists and end users, with the aim of providing people in need with an AAC app that doesn't cost hundreds of dollars or require monthly subscriptions. ChatterBoards is an easy to use Augmentative and Alternative Communication (AAC) aid for people of any age who have speech or language difficulties. This can include people with autism, aphasia, apraxia, stroke, downs syndrome, or any other disability that causes the individual to have difficulties in communicating or expressing their needs. Continually updated with new features and enhancements. All suggestions and/or requests are considered. Full feature list: - Create and use vocabulary boards, including multiple paged vocabularies, for forming sentences. - Board levels. Levels provide a way to progressively build up a user's vocabulary. A limited set of words can be displayed at each level, progressively building up the number of words shown until the full board is used. Words/Tiles do not move position between boards, allowing users to remember and learn a number of words at a time without them moving. - Create and use basic phrase boards which associate a basic full phrase/sentence to an individual button, providing quick responses or questions for basic communication needs. - Ability to create and switch between different profiles, each with their own set of boards and settings. Ideal for households with multiple users, or specialists with multiple clients. - All board dimensions supported up to and included 16x16 (rows x columns) per page. - Fully customisable buttons. Change their text, colour (border and background), image and audio playback - Change a buttons image from either your devices photo library, camera, or from over 4000 sample symbols. - Includes over 3500 symbols provided by Mulberry Symbols (https://mulberrysymbols.org/) - Includes over 500 symbols designed by Freepik and distributed by Flaticon. - Save images from the internet, or from your own symbol libraries, into your photo library for use. - Supports text-only and image-only buttons. - Fully customisable button audio. Use the Text to Speech synthesiser or record your own voice(s) using your devices microphone. - Keyboard input mode. Alternatively to using symbols, manually enter desired vocabulary with keyboard input. - Text to Speech supports all iOS packaged languages (over 50 languages/dialects). Includes multiple male and female voices for English. - Change rate, pitch and/or volume of Text to Speech synthesiser. - Set App wide voice/language, rate, pitch and volume default values for the Text to Speech synthesiser. - Fully customisable boards. Change dimensions anytime, add, delete and move buttons as desired. - Copy existing boards to create new permutations - Copy/paste individual tiles - Share boards with other users of ChatterBoards. Use Apple AirDrop, Mail, Message, or any other valid installed application on your device. - The ability to lock controls, e.g. editing. Like a parental control. - Supports both iPhone and iPad Also a number of Arasaac Symbols are included as samples (approx. 20). These pictograms used are property of Aragon Goberment and have been created by Sergio Palao to ARASAAC (http://arasaac.org) which distribute them under Creative Commons License (BY-NC-SA)
Screenshots
Verdict
TD Snap® and ChatterBoards AAC both sit at 4.2 stars, but that hides the real split: 71% of ChatterBoards AAC's written reviews are positive against 30% of TD Snap®'s. ChatterBoards AAC also leads on in-app purchases (none vs 10) and update cadence (every 3 weeks vs every 2 months). TD Snap®'s advantage is ratings volume (810 vs 90). On price, rating and ads 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
Both are free to download. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. ChatterBoards AAC asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.2 for TD Snap® against 4.2 for ChatterBoards AAC. That said, the two scores are not equally well evidenced: TD Snap® has 810 ratings behind it against 90, so its average is the more settled of the two. Written reviews are what separate them: 30% of TD Snap®'s written reviews are positive against 71% of ChatterBoards AAC's.
TD Snap® ships an update every 2 months, ChatterBoards AAC every 3 weeks. Both last shipped on September 21, 2026.
| Parameter | TD Snap® | ChatterBoards AAC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (810 ratings) | 4.2 (90 ratings) |
| Positive reviews | 29.6% of reviews | 71.2% of reviews — better |
| Number of ratings | 810 — better | 90 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Paid — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 10.3 — better |
| Further details — not scored | ||
| Size | 3.4 GB | 116 MB |
| Age rating | 4+ | 4+ |
| Developer | Tobii Dynavox LLC | Paul Popiel |
Customer experience
TD Snap®
ChatterBoards AAC
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
ChatterBoards AAC
Not enough reviews yet to summarise bugs or requests.
In-app purchases
TD Snap®
- Gateway Monthly1 Month trial$4.991 Month
- PODD Monthly1 Month trial$4.991 Month
- Metacom Monthly1 Month trial$4.991 Month
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- Speaking Upgrade Monthly1 Month trial$9.991 Month
- Acapela Voices$39.99
- Nuance Voices$39.99
- Speaking Upgrade$49.99
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- METACOM Symbols$49.99
- PODD Page Sets$149.99
- Gateway Page Sets$149.99
ChatterBoards AAC
No in-app purchases
Questions
Is TD Snap® free?
Is ChatterBoards AAC free?
Which has better reviews, TD Snap® or ChatterBoards AAC?
Do TD Snap® or ChatterBoards AAC have ads?
Which is updated more often, TD Snap® or ChatterBoards AAC?
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