Comparison

Grid for iPad vs TD Snap®

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

Head to head
About

Grid for iPad

This app provides a comprehensive Augmentative and Alternative Communication (AAC) solution for individuals with diverse communication needs. It offers flexible tools, evidence-based resources, and customizable features that adapt as users' needs evolve.

Highlights
  • Evidence-based AAC resources
  • Online community grid sets
  • In-app and remote editing
  • AI-powered design tools
  • Multiple symbol libraries
  • Multilingual support
  • Pre-built communication resources
Features
Read full description

Grid for iPad is a complete Augmentative and Alternative Communication (AAC) solution designed for people of all ages and communication needs. It offers a range of resources, flexible communication tools, and options that can be adapted over time. Try it FREE for 30 days - voices included! Key features: ► A range of included content for people who need symbol or text based AAC, including Super Core, Voco Chat, and Text Talker ► Suitable for use with touch access or switches. ► Evidence-based symbol AAC vocabularies, created by experienced speech and language therapists and education professionals, with a focus on vocabulary for communicating within everyday routines and activities. ► Includes SymbolStix, PCS and Widgit symbols – choose the symbol library that is most suitable, to match the symbols already being used in the environment, or to support transition from other AAC systems. ► Voices and grid sets for over 20 languages to support communication in a range of languages. Ideal for multilingual families or classrooms. Why families and professionals choose Grid for iPad for children and adults with communication difficulties: ► In-app editing – Fast, intuitive editing makes it easy to add new words, personalise vocabulary, and adapt layouts to the needs of the individual. ► Remote Editing – SLTs, teachers and families can edit any time, without needing the device in their hands. ► Powerful voice technology – Choose from a range of voices, including the latest AI powered multilingual voices from ElevenLabs, or for those who are able to, record your own voice messages. ► AI Powered Tools - Make use of optional tools to correct typing errors, or support the user to change the tone or wording of their message. ► Talk to your Smart Speaker – Use Grid for iPad to speak instructions to smart home devices, request music, hear the latest news and weather, play games and ask questions. ► Online Grids – Do even more with Grid for iPad by searching and downloading FREE ready-made grid sets created by clinicians, educators, and the Grid community. What’s included: ► Super Core - Evidence-based core vocabulary focused on communication within everyday routines and activities. Designed for supporting AAC learners from single words to building full sentences. Available in 30‑cell and 50‑cell sizes, with simpler 12 and 20 cell learning grids for those just starting out. ►Voco Chat – Designed to enable users to communicate for a wide range of reasons, with supported message pathways and carefully chosen vocabulary, for fast and efficient symbol communication. ► Alpha Core - Offers a range of text-based layouts to support the communication of people with changing physical abilities, with quick access to predictive text and common phrases, alongside a keyboard of your choice. ► Text Talker - Enabling people to say what they want to say in the moment, or prepare and save messages in advance for faster conversations. ►Aphasia Duo - Designed specifically for people with aphasia and their communication partners to support participation in everyday life, including a range of word-finding and conversational supports, and whiteboard for writing and drawing. ► PODD (in-app purchase) - Created by Australian Speech Pathologist Gayle Porter, PODD organises language according to the reason for communication, designed to support spontaneous communication in any situation. ► And MUCH more - Grid for iPad also includes a range of interactive learning activities (just try Dilbert the Dog!), animated communication from Symoji, and educational resources. Simple, flexible pricing: Grid for iPad is available through a monthly subscription with a 30-day FREE trial or as a one-off purchase. You can cancel your subscription at any time. Contact our tech support experts any time at support@thinksmartbox.com For more details on our evidence-based vocabularies, visit the Smartbox Hub.

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.

Verdict

The call

The clearest difference is rating: TD Snap® at 4.2 against Grid for iPad's 3.6. TD Snap® also leads on ratings volume (810 vs 18) and iOS requirement (13.0 vs 15.0). Grid for iPad's advantage is monetization model (free with in-app purchases vs subscription) and review sentiment (50% vs 30%). 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. Grid for iPad sells 4 in-app purchases, starting at $10.99 per month and TD Snap® sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

TD Snap® holds the better App Store score, 4.2 against 3.6. That said, the two scores are not equally well evidenced: TD Snap® has 810 ratings behind it against 18, so its average is the more settled of the two. Written reviews complicate that: 50% of Grid for iPad's written reviews are positive against 30% of TD Snap®'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Grid for iPad ships an update fortnightly, TD Snap® every 2 months. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
Grid for iPad versus TD Snap®: the parameters behind the verdict, then further details
ParameterGrid for iPadTD Snap®
PriceFreeFree
Rating3.6 (18 ratings)4.2 (810 ratings) — better
Positive reviews50.0% of reviews — better29.6% of reviews
Number of ratings18810 — better
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPadiPad
Requires iOS15.013.0 — better
Further details — not scored
Size1.4 GB3.4 GB
Age rating4+4+
DeveloperSmartbox Assistive TechnologyTobii Dynavox LLC

Customer experience

Grid for iPad

All ratings18 ratings
Positive61.1%
Neutral5.6%
Negative33.3%
Written reviews12 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

TD Snap®

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

Bugs and requests

Grid for iPad

Not enough reviews yet to summarise bugs or 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

In-app purchases

4 purchases

Grid for iPad

Subscriptions1
  • Grid for iPad Subscription1 Month trial$10.991 Month
One-time3
  • Metacom Symbol Library$49.99
  • PODD for Grid (English)$99.00
  • Grid for iPad full licence$299.99
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

Questions

Is Grid for iPad free?
Grid for iPad is free to download, with in-app purchases available.
Is TD Snap® free?
TD Snap® is free to download, with in-app purchases available.
Which has better reviews, Grid for iPad or TD Snap®?
TD Snap® is rated higher. Grid for iPad averages 3.6 out of 5 from 18 ratings, while TD Snap® averages 4.2 from 810 ratings.
Do Grid for iPad or TD Snap® have ads?
Neither Grid for iPad nor TD Snap® shows ads.
Which is updated more often, Grid for iPad or TD Snap®?
Grid for iPad ships an update fortnightly, and TD Snap® every 2 months. Most recently, Grid for iPad was updated on September 14, 2026 and TD Snap® on September 21, 2026.

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