TouchChat vs TD Snap

The short answer: TouchChat HD ($149.99, or $299.99 with WordPower, from PRC-Saltillo) is the better choice if your school team works in WordPower or a PRC-Saltillo dedicated device is in your child's future, and you prefer to pay once. TD Snap ($9.99/month, from Tobii Dynavox) is the better choice if your child needs eye-gaze or head-tracking access, your school uses Core First or PCS/Boardmaker materials, you need Windows support, or you want to start for $9.99 instead of $150+. These are the apps behind the two biggest dedicated-device ecosystems in AAC — the hardware path usually decides it.

	TouchChat HD	TD Snap
Price	$149.99 base · $299.99 with WordPower (one-time)	$9.99/month subscription (one-time purchase discontinued 2024)
Platforms	iPad, iPhone; PRC-Saltillo dedicated devices	iPad, Windows, Tobii Dynavox dedicated devices
Languages	English and Spanish	Multiple, via localized PCS page sets (incl. English, Spanish, and several European languages)
Symbol system	SymbolStix (PCS available)	PCS (Picture Communication Symbols)
Vocabulary	WordPower (add-on), MultiChat, and many page sets	Core First page sets, text-based and aphasia page sets
Access methods	Touch, switch scanning, head tracking	Touch, eye gaze, switch scanning, head tracking (on supported hardware)
Dedicated-device path	PRC-Saltillo (Via, Accent families)	Tobii Dynavox (incl. eye-gaze devices)
Learning curve	Steep — many page sets and options, best set up with an SLP	Steep — built for professional configuration
Support & training	PRC-Saltillo training, Realize Language data tools	Tobii Dynavox training courses, Boardmaker ecosystem, device funding support

Price: one-time vs subscription

TouchChat is a classic one-time purchase: $149.99, or $299.99 in the bundle with WordPower that most SLPs recommend. TD Snap went subscription-only in 2024 at $9.99/month — about $120/year, forever. The crossover point is roughly 15 months against the base TouchChat price, or 30 months against the WordPower bundle. The flip side: TD Snap lets you try professional-grade AAC for $9.99, while TouchChat asks for $150+ before the first tap.

Ecosystems: PRC-Saltillo vs Tobii Dynavox

This comparison is really a choice between the two biggest dedicated-device companies in AAC. TouchChat is PRC-Saltillo's iOS app; a child who starts in TouchChat with WordPower can move to a Via or Accent dedicated device with vocabulary and motor patterns intact. TD Snap is Tobii Dynavox's app; its device family includes the eye-gaze-capable hardware that is Tobii's signature strength.

If your child may ever need eye-gaze access, TD Snap is the clear pick — no other mainstream ecosystem matches it. If your school district and SLP work in WordPower and PRC-Saltillo hardware, TouchChat keeps everything consistent.

Symbols and school continuity

TD Snap uses PCS — the same Picture Communication Symbols many children already know from Boardmaker classroom materials, visual schedules, and worksheets. TouchChat primarily uses SymbolStix. Neither is objectively better, but matching what your child's school already uses reduces friction. Ask the classroom team which symbols are on the walls.

Who should choose which

Choose TouchChat if your school team or SLP works in WordPower, a PRC-Saltillo dedicated device is a possibility, or you prefer paying once over a subscription.

Choose TD Snap if your child needs (or may need) eye-gaze, switch, or head-tracking access; a Tobii Dynavox device is a possibility; your school uses Core First or PCS/Boardmaker; you need Windows support; or you want a $9.99 low-risk start.

A third option worth knowing: Tala

TouchChat and TD Snap share one assumption: word-based AAC configured by professionals, ideally inside a school or clinic ecosystem. That's the right model for many children — but not all. Many autistic children are gestalt language processors who learn language in whole chunks ("Can I have a hug") rather than word by word, and many families start AAC at home, without a device evaluation or support team.

Tala was built for exactly those families: 10 ready-made boards of whole-phrase cards, one natural, human-sounding voice per language across 29 languages, offline audio, and a 90-second setup a parent does alone. It's free to start — you only pay ($9.99/month) past the free custom-content allowance, and it's free forever for SLPs and teachers.

We've written honest comparisons against both apps: see Tala vs. TouchChat and Tala vs. TD Snap. And where TouchChat or TD Snap is genuinely the better fit — eye-gaze access, dedicated devices, school-team continuity — we say so.

The best AAC app is the one your child will actually use every day.

Frequently asked questions

Which is cheaper, TouchChat or TD Snap?

TD Snap is cheaper to start: $9.99/month on the App Store, so your first month costs $9.99. TouchChat HD is $149.99 upfront ($299.99 with WordPower) but has no ongoing cost — it works out cheaper than TD Snap after roughly 15–30 months of use.

Do TouchChat or TD Snap support eye-gaze access?

TD Snap does — on supported Tobii Dynavox hardware it offers eye gaze, switch scanning, and head tracking, which is its biggest advantage. TouchChat on iPad supports touch, switch scanning, and head tracking, and its dedicated-device path runs through PRC-Saltillo hardware.

What is the difference between TouchChat and TD Snap?

Ecosystems. TouchChat is PRC-Saltillo's app, built around the WordPower vocabulary and their dedicated devices. TD Snap is Tobii Dynavox's app, built around Core First page sets, PCS symbols, and their eye-gaze-capable hardware. Feature-wise they are close; the school team and hardware path usually decide it.

Do TouchChat or TD Snap offer free trials?

TD Snap effectively yes — its subscription lets you start and cancel within a month, so your risk is $9.99. TouchChat offers a free "TouchChat Discover" exploration app, but the full app requires the $149.99+ purchase upfront.

Is there a simpler alternative to TouchChat and TD Snap?

Yes. Tala is built for families rather than professional configuration: 10 ready-made boards of whole-phrase cards, natural voices in 29 languages, offline audio, and a 90-second setup. It is free to start, $9.99/month past the free custom-content allowance, and free forever for speech-language pathologists and teachers.