Comparison

TD Snap® vs Weave Chat 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

Weave Chat AAC

This app provides a customizable Augmentative and Alternative Communication (AAC) system. It features a wide range of vocabulary with color-coded categories and allows users to add their own images, phrases, and voices. Users can also modify board layouts and lock customization settings.

Highlights
  • Customizable AAC boards
  • Extensive vocabulary with weekly updates
  • Add custom images and categories
  • Create and save custom phrases
  • Select synthetic voice
  • Modify board layouts
  • Passcode lock for customization
Features
Read full description

Weave Chat AAC is a free, dynamic, and completely customizable AAC app that is available to a variety of devices. There are over 3,500 pre-configured words with a symbol library including more than 65,000 symbols that you can choose from. Weave Chat AAC offers a large variety of verbs (green), pronouns (yellow), questions (purple), nouns (tan/orange), adjectives (blue), and conversational words (pink). All color choices were made based on the Fitzgerald Key and new vocabulary is added weekly. Users can add their own custom images and categories in Settings —> Manage Custom Images. In addition, users can add their own custom phrases that can easily be accessed from their board; to add phrases, go to Settings —> Manage Phrases. Users can select a synthetic voice (dependent on their device settings) from Settings —> Change Voice Settings - here you can select your voice, vocal pitch, and rate of speech. Image and text size can be personalized from Settings —> Change Image & Text Size (select from default - small, medium, and large). Settings —> Configure Image Keyboard allows the user to turn on/off features that allow for the category text to be read aloud (synthetic voice for categories), to keep the user in the category after a image has been selected (stay on category after image selection), and disable the speech output for individual words so that it only reads aloud when the white text screen is touched (synthetic voice disabled for individual words). The AAC board can be modified in Settings —> Manage Board Builder. Here, the user can select from the default board (you must make a copy to edit it - to do this select “Add new keyboard” and then select “Hide Images” for Type of Keyboard); grid position boards (ranging in size from 1x2 - 7x15 rows/columns); and Board Builder (gives you the option to build a board from scratch). All boards are completely editable and all custom images and categories can be used from all boards. Lastly, Manage Pin Configuration allows the user to set a pin over all (or just some) aspects of customization to lock down features as needed. Feature List: - Dynamic, customizable, AAC boards - Large variety of verbs, nouns, and adjectives with additional vocabulary added weekly - Add custom images and custom categories - Create and save phrases - Select a synthetic voice (as available per your device settings) - Copy & Paste AAC picture icon messages via “share” - Create and/or modify AAC boards via 3 options: grid position boards (ranging from 1x2 - 7x15), hide images, and/or create a new board from scratch - “Text” others who have the app using AAC picture icons - Set a passcode to lock down features as needed - Weave Chat AAC currently only has English buttons/images

Screenshots

Weave Chat AAC4 screens

Verdict

The call

The clearest difference is review sentiment: Weave Chat AAC at 81% against TD Snap®'s 30%. Weave Chat AAC also leads on rating (4.7 vs 4.2) and in-app purchases (none vs 10). TD Snap®'s advantage is iOS requirement (13.0 vs 15.1). On price, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. Weave Chat AAC asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Weave Chat AAC holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 810 and 521 respectively. Written reviews point the same way: 30% of TD Snap®'s written reviews are positive against 81% of Weave Chat AAC's.

UpkeepUpdate frequency

TD Snap® ships an update every 2 months, Weave Chat AAC every 8 days. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

Scorecard7 real differences · 3 level
TD Snap® versus Weave Chat AAC: the parameters behind the verdict, then further details
ParameterTD Snap®Weave Chat AAC
PriceFreeFree
Rating4.2 (810 ratings)4.7 (521 ratings) — better
Positive reviews29.6% of reviews80.7% of reviews — better
Number of ratings810 — better521
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.0 — better15.1
Further details — not scored
Size3.4 GB115 MB
Age rating4+4+
DeveloperTobii Dynavox LLCWeave Chat, LLC

Customer experience

TD Snap®

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

Weave Chat AAC

All ratings521 ratings
Positive90.8%
Neutral4.2%
Negative5.0%
Written reviews88 reviews
Positive80.7%
Neutral8.0%
Negative11.4%

User reviews

TD Snap®

From 810 App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Customizable
  • 🚀 Intuitive navigation
  • 👍 Helpful supports and features
  • 🚀 Flexible and robust

Room to improve

  • 🔒 Subscription model for voice
  • 🐛 Voice issues after updates
  • 💰 Expensive subscription
  • 🔒 Removing previously paid features
  • 🐛 Crashes and bugs

Weave Chat AAC

From 521 App Store ratings

What we love

  • 🚀 Customizable and easy to use
  • 👍 Robust communication features
  • 💡 Completely free app
  • 🚀 Responsive and helpful support team
  • 👍 Wide range of vocabulary and language options

Room to improve

  • 🐛 Occasional sync and loading issues
  • 👎 Limited custom button capacity
  • 👎 Lack of pre-made vocabulary for certain topics
  • 👎 Inconsistent voice quality and volume
  • 👎 Confusing button editing process

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

Weave Chat AAC

Reported bugs

3 issues
  • Syncing issues causing long loading times
  • Inability to receive verification token during signup
  • Freezing when trying to share between devices

Requested features

5 requests
  • Easier custom button editing from main board
  • More age-appropriate voice options
  • Increased custom button capacity
  • Pre-made vocabulary for sensitive topics
  • Improved volume and audio quality control

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

Weave Chat AAC

No in-app purchases

Questions

Is TD Snap® free?
TD Snap® is free to download, with in-app purchases available.
Is Weave Chat AAC free?
Weave Chat AAC is free to download, with no in-app purchases.
Which has better reviews, TD Snap® or Weave Chat AAC?
Weave Chat AAC is rated higher. TD Snap® averages 4.2 out of 5 from 810 ratings, while Weave Chat AAC averages 4.7 from 521 ratings.
Do TD Snap® or Weave Chat AAC have ads?
Neither TD Snap® nor Weave Chat AAC shows ads.
Which is updated more often, TD Snap® or Weave Chat AAC?
TD Snap® ships an update every 2 months, and Weave Chat AAC every 8 days. Most recently, TD Snap® was updated on September 21, 2026 and Weave Chat AAC on September 23, 2026.

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