Comparison

iHear PECS 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

iHear PECS

This app uses animal sounds to help children develop communication skills. It allows personalization with custom sentence starters and animal images, making learning interactive and fun for early communicators.

Highlights
  • Animal sound association
  • Personalized sentence starters
  • Customizable image selection
  • Drag-and-drop interface
  • Supports spontaneous communication
  • Interactive learning experience
Read full description

Children love animals—and the sounds they make! iHear PECS™: Animals is an engaging app designed to support learners as they develop communication skills. Animal sounds are used to encourage natural communication opportunities. Families and educators can personalize the experience by choosing 1–3 sentence starters and up to12 animal images, allowing for flexible use across settings. With simple drag-and-drop features, iHear PECS™: Animals helps learners with responsive and spontaneous communication in a motivating, and interactive way. Designed for early communicators and emerging language learners, this app turns listening and commenting into a fun experience that supports curiosity, connection, and lots of smiles along the way.

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.

Screenshots

iHear PECS3 screens

Verdict

The call

The clearest difference is price: TD Snap® at Free against iHear PECS's $0.99. TD Snap® also leads on rating (4.1 vs 3.0) and ratings volume (873 vs 2). iHear PECS's advantage is in-app purchases (none vs 4). On review sentiment, ads 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

TD Snap® is free to download; iHear PECS costs $0.99 up front. TD Snap® sells 4 in-app purchases, starting at $4.99 per month. iHear PECS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TD Snap® holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: TD Snap® has 873 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 25% of iHear PECS's written reviews are positive against 31% of TD Snap®'s.

UpkeepUpdate frequency

iHear PECS ships an update every 4 months, TD Snap® every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
iHear PECS versus TD Snap®: the parameters behind the verdict, then further details
ParameteriHear PECSTD Snap®
Price$0.99Free — better
Rating3.0 (2 ratings)4.1 (873 ratings) — better
Positive reviews25.0% of reviews30.7% of reviews — better
Number of ratings2873 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPad — betteriPad
Requires iOS16.613.0 — better
Further details — not scored
Size26 MB3.4 GB
Age rating4+4+
DeveloperPyramid Global Communication Technology LLCTobii Dynavox LLC

Customer experience

iHear PECS

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

TD Snap®

All ratings856 ratings
Positive77.1%
Neutral6.3%
Negative16.6%
Written reviews179 reviews
Positive30.7%
Neutral5.6%
Negative63.7%

Bugs and requests

iHear PECS

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

None

iHear PECS

No in-app purchases

4 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

Questions

Is iHear PECS free?
iHear PECS costs $0.99, with no in-app purchases.
Is TD Snap® free?
TD Snap® is free to download, with in-app purchases available.
Which has better reviews, iHear PECS or TD Snap®?
TD Snap® is rated higher. iHear PECS averages 3.0 out of 5 from 2 ratings, while TD Snap® averages 4.1 from 873 ratings.
Do iHear PECS or TD Snap® have ads?
Neither iHear PECS nor TD Snap® shows ads.
Which is updated more often, iHear PECS or TD Snap®?
iHear PECS ships an update every 4 months, and TD Snap® every 2 months. Most recently, iHear PECS was updated on November 1, 2026 and TD Snap® on November 2, 2026.

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