Comparison

TD Snap® vs SpellRBoard

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

SpellRBoard

This app provides a digital letterboard for individuals who have difficulty speaking. It allows users to spell words and phrases using an alphanumeric keyboard, which are then converted to speech. Designed for accessibility, it offers a clutter-free and reliable communication solution.

Highlights
  • Ad-free experience
  • Alphanumeric letterboard
  • Text-to-speech output
  • Save and copy spelling sessions
  • Customizable speech settings
  • Offline functionality
Features
Read full description

SpellRBoard is a simple, effective, and accessible digital letterboard app designed to help individuals who are unable to communicate reliably using their voice. Whether due to speech impairments, neurological conditions, or other challenges, SpellRBoard allows users to spell out words and phrases using an alphanumeric letterboard. Paired with text-to-speech technology SpellRBoard offers an easy-to-use platform for those in need of an AAC (Augmentative and Alternative Communication) solution. SpellRBoard removes the clutter of ads, pop-ups, and ongoing payments so that users can focus solely on what matters most: communication. Key Features: • Ad-Free, No Additional Costs: SpellRboard is a one-time purchase with no hidden fees, no ads, and no in-app purchases. All features are included at the time of purchase, offering a hassle-free experience. No registration is required. • Alphanumeric Letterboard: SpellRboard uses a digital alphanumeric letterboard that includes all the letters of the alphabet, numbers, and commonly used symbols. The letterboard is easy to navigate and designed for fast and reliable spelling, allowing users to create complete thoughts by selecting individual letters. • Text-to-Speech (TTS) Output: Using Apple’s proprietary Text To Speech synthesizer. • Save/Copy Options: Easily save your spelling sessions to other apps like the Notes app. • Customizable Speech Settings: Choose from a variety of voices and adjust speech speed, pitch, and volume to ensure the voice output meets individual preferences and needs. • Offline Functionality: SpellRboard works without requiring an internet connection, ensuring that users have reliable access to the app at all times, whether at home, on the go, or in settings where internet access is unavailable. Currently we support the following languages: • English TTS Voices with English Alphabet. • French TTS Voices with English Alphabet • Spanish TTS Voices with Spanish Alphabet • Dutch TTS Voices with English Alphabet • Greek TTS Voices with Greek Alphabet Note From Developer: I designed this app originally for my younger brother, who has autism and is non speaking. My family has been helping him learn to communicate using a letteboard, where he points to each letter, spelling out whatever he wants to say. I realized that I could create a digital version of a letterboard so he could spell independently. I was encouraged to publish the app and refine it, so that it could be accessible to all. SpellRBoard- because everyone has a voice and deserves to be heard.

Screenshots

SpellRBoard1 screens

Verdict

The call

The clearest difference is review sentiment: SpellRBoard at 100% against TD Snap®'s 30%. SpellRBoard also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 10). TD Snap®'s advantage is price (Free vs $19.99) and ratings volume (810 vs 4). On update cadence, ads and iOS requirement 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

TD Snap® is free to download; SpellRBoard costs $19.99 up front. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. SpellRBoard asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SpellRBoard holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: TD Snap® has 810 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 30% of TD Snap®'s written reviews are positive against 100% of SpellRBoard's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 26, 2026 and September 7, 2026 respectively.

Scorecard7 real differences · 3 level
TD Snap® versus SpellRBoard: the parameters behind the verdict, then further details
ParameterTD Snap®SpellRBoard
PriceFree — better$19.99
Rating4.2 (810 ratings)5.0 (4 ratings) — better
Positive reviews29.6% of reviews100.0% of reviews — better
Number of ratings810 — better4
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionPaid — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.012.0 — better
Further details — not scored
Size3.4 GB88 MB
Age rating4+4+
DeveloperTobii Dynavox LLCDYLAN PAUL KAZAK

Customer experience

TD Snap®

All ratings810 ratings
Positive77.5%
Neutral6.0%
Negative16.4%
Written reviews142 reviews
Positive29.6%
Neutral6.3%
Negative64.1%

SpellRBoard

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

SpellRBoard

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 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
One-time6
  • Acapela Voices$39.99
  • Nuance Voices$39.99
  • Speaking Upgrade$49.99
Show 3 more
  • METACOM Symbols$49.99
  • PODD Page Sets$149.99
  • Gateway Page Sets$149.99
None

SpellRBoard

No in-app purchases

Questions

Is TD Snap® free?
TD Snap® is free to download, with in-app purchases available.
Is SpellRBoard free?
SpellRBoard costs $19.99, with no in-app purchases.
Which has better reviews, TD Snap® or SpellRBoard?
SpellRBoard is rated higher. TD Snap® averages 4.2 out of 5 from 810 ratings, while SpellRBoard averages 5.0 from 4 ratings.
Do TD Snap® or SpellRBoard have ads?
Neither TD Snap® nor SpellRBoard shows ads.
Which is updated more often, TD Snap® or SpellRBoard?
TD Snap® ships an update every 2 months, and SpellRBoard every 2 months. Most recently, TD Snap® was updated on September 26, 2026 and SpellRBoard on September 7, 2026.

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