ABA vs TD Snap®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ABA
This app helps young children develop problem-solving skills by identifying the item that doesn't belong in a group of four. It uses real photographs and customizable content to teach concepts like colors, shapes, and characteristics in an engaging, multi-sensory way.
- Identify the item that doesn't belong
- Teaches colors, shapes, and characteristics
- Add custom voice and items
- Uses real photographs
- Dynamic difficulty adjustment
- Multi-sensory learning
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"Wow... this one is an awesome problem solving app and great at teaching concepts such as colors, up and down, left and right." Endorsed by tens of thousands of satisfied parents, teachers, and kids the world over. Touch and Learn is a powerful new gaming platform that allows you to introduce new concepts in a fun and exciting new way. You can use Touch and Learn to teach basic concepts such as new shapes or advanced concepts such as colors or characteristics (e.g. big, bigger, small, smaller, etc.). The possibilities are truly endless and just up to your imagination. This game comes pre-loaded with hundreds of unique images to provide hours of learning and entertainment. What's unique about the Touch and Learn - What does not belong apps? The "what does not belong apps" do the opposite of the basic Touch and Learn applications. Instead of asking kids to find "the circle" or the "red square" the "what does not belong apps" display 4 images and require the child to identify the one item that is different. The difference could be due to the color, name of the object, type of object or concept being presented. This app can be challenging or easy depending on the difficulty that you select and is ideal for ages 2 to 4. FEATURES • Add your own voice - now your toddler can learn everything in mommy's or daddy's voice • Add your own items - take pictures of your child's favorite items to make the game more fun and personal • Add your own concepts - you can add an unlimited number of new concepts and associate them with any picture or item to add exciting new levels and hours of fun • Learn by sight, sound, and touch • Uses real, crisp photographs that are carefully hand picked and selected vs. cartoonish illustrations • Uses advanced algorithms that automatically makes the teaching of concepts fun and easy to grasp (i.e when teaching the concept of yellow circle, the app will present both a circle that is not yellow and another item that is yellow but is not a circle). • Fun & engaging voice artist keeps kids engaged • Dynamic game play adjust difficulty automatically to keep kids both challenged and entertained vs. getting bored. If you select progressive game play then the game starts with easy concepts (e.g. touch the circle) and proceeds to advanced concepts (touch the bigger circle) automatically. • Wrong answers do not interfere with gameplay, the child can immediately try again and touch the correct answer (most other games are too slow to keep kids interested by slowly repeating the desired question). • Multi-sensory learning tool - combining audio, voice, and written words • Don't like some of the existing items... no problem, just delete or turn them off to cover only what you like • Multi-language support - since you can edit existing items and add new items, you can record everything in your native tongue HEROIC SUPPORT Heroic Support is not just what we do. It's really what makes us, well, us. It's that drive to make a difference in your life - no matter how big or small. Really, it's our way of life because we want you to be our customer for a lifetime of fun and learning. Have questions? We are here to help. Email us at support@grasshopperapps.com
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.
Screenshots
Verdict
The clearest difference is price: TD Snap® at Free against ABA's $0.99. TD Snap® also leads on update cadence (every 2 months vs every 72 months) and ratings volume (810 vs 32). ABA's advantage is review sentiment (67% vs 31%) and in-app purchases (none vs 10). On 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
TD Snap® is free to download; ABA costs $0.99 up front. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. ABA asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.2 for ABA against 4.2 for TD Snap®. That said, the two scores are not equally well evidenced: TD Snap® has 810 ratings behind it against 32, so its average is the more settled of the two. Written reviews are what separate them: 67% of ABA's written reviews are positive against 31% of TD Snap®'s.
ABA ships an update every 72 months, TD Snap® every 2 months. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.
| Parameter | ABA | TD Snap® |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.2 (32 ratings) | 4.2 (810 ratings) |
| Positive reviews | 66.7% of reviews — better | 30.7% of reviews |
| Number of ratings | 32 | 810 — better |
| Update frequency | Every 72 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 37 MB | 3.4 GB |
| Age rating | 4+ | 4+ |
| Developer | Innovative Mobile Apps | Tobii Dynavox LLC |
Customer experience
ABA
TD Snap®
User reviews
ABA
From 32 App Store ratingsWhat we love
- 👍 Great for special needs students
- 💡 Highly customizable options
- 🧠 Good for critical thinking
- 🧩 Useful for problem-solving
- 🗣️ Helps with vocabulary
Room to improve
- 🐛 App stalls after updates
- 🐛 Crashes on concept level
- 🐛 Voiceover mispronunciation
- 🐛 Inappropriate image (marijuana leaf)
- 🐛 Visuals are horrible/ugly
TD Snap®
From 810 App Store ratingsWhat 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
Bugs and requests
ABA
Reported bugs
6 issues- Won't let me out of touch and learn segment
- Stalls after 3 or 4 pages
- Crashes on the concept level
- Voiceover mispronounces 'belong'
- One of the shapes is a marijuana leaf
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- Kept force closing
Requested features
7 requests- Add accuracy percentage counter for documentation
- Add data collection system
- Create something with more vivid colors
- Make it much harder
- Make it more interesting to a toddler
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- Add more interesting pictures and rewards
- Track accuracy
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
ABA
No 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









