The moment a speech-language pathologist recommends an AAC app, many parents open their app store and encounter a wall: dozens of options, prices ranging from free to $400, and each one presenting itself as the answer. The major AAC apps share more in common than their marketing suggests, and a few key distinctions will narrow the field considerably.

Symbol-Based vs. Text-Based: Where to Start

Most AAC apps for young children or beginning communicators are symbol-based, meaning they display pictures or icons that a child taps to generate speech. Proloquo2Go, TouchChat HD with WordPower, Grid 3, Avaz, and CoughDrop all work this way at their core. Text-based systems like Proloquo4Text suit older users who can read and want to compose original messages.

For most families starting out with a nonverbal child, symbol-based is the entry point.

The Major Apps, Compared

Proloquo2Go

Available for iOS at $249.99, Proloquo2Go has the longest track record and the widest adoption among speech-language pathologists in the United States. Its vocabulary is organized around core words, a small set of high-frequency terms that let a child combine language across contexts rather than just making requests. The interface is highly customizable. The tradeoff is a real learning curve for parents and clinicians handling setup.

TouchChat HD with WordPower

TouchChat runs on both iOS and Android at $299.99, which matters if your household uses Android or if flexibility across devices is a priority. WordPower is a vocabulary organization system that pairs with TouchChat and earns strong SLP support. The combination works across a wide range of ages and ability levels, and the Android compatibility gives it reach that Proloquo2Go lacks.

Grid 3

Grid 3 from Smartbox runs on Windows and Android and is available by subscription or one-time purchase. It is the dominant AAC software in the United Kingdom and increasingly recommended in the U.S. for users who may eventually move to a dedicated AAC device or Windows-based system. If your child's school uses Windows tablets or dedicated devices, Grid 3 is worth exploring early.

Avaz

Avaz runs on iOS and Android and sits in a more accessible price tier at $99.99 to $199.99. It earns consistent recommendations for children with autism at early communication stages. The Fitzgerald Key color-coding system some children find easier to navigate, and it connects with classroom tools like Boardmaker. When budget is a significant factor, Avaz delivers real functionality.

CoughDrop

CoughDrop's subscription model makes it the most accessible entry point financially, at $15 per month or $149 per year, and it works across iOS, Android, and any web browser. Being browser-based means a child can access their communication boards from any device. The collaborative editing feature allows parents, therapists, and teachers to update vocabulary simultaneously. For families managing communication across home, school, and therapy, that flexibility counts.

What Determines Fit

Three things make the real difference.

Your child's motor skills.

A child with limited hand control needs a layout with large targets and fewer buttons per screen. All major apps allow you to reduce grid density, but some have better large-grid templates out of the box. An SLP or occupational therapist can do a motor access assessment that narrows this down before you commit.

Device compatibility.

If you're working with an iPad, Proloquo2Go and Avaz have the most polished iOS experience. If Android is your preference or you need access across multiple devices, TouchChat or CoughDrop are stronger choices. Grid 3 makes the most sense if the plan includes moving to a dedicated AAC device later.

Who will configure it.

Complex vocabulary systems require someone willing to customize pages, add photos, and build vocabulary progressively over time. If that person is you, plan for the time commitment. If setup will fall primarily on a school team, find out what software they already know and support. In practice, the app a parent can learn to maintain and update is more useful than the one with more features that only gets configured at quarterly SLP appointments.

Free Options Worth Testing

LetMe Talk on Android is free and a solid place to start, particularly for families in the earliest stage of exploring AAC. Snap Core First offers a free trial before a subscription kicks in. LAMP Words for Life is frequently recommended by clinicians trained in the LAMP approach, which emphasizes consistent motor patterns for symbol access. Free does not mean inferior, particularly during the trial phase when you are still learning what your child will use.

What the Research Shows

No study has found one AAC app universally superior. The research is consistent on something more foundational: any strong AAC system used consistently, with communication partners who actively support it, produces better outcomes than a more sophisticated app used sporadically. The right app is the one your child engages with, that your team can learn to configure, and that fits the settings where your child communicates most.

Start with a free trial where one is available. Include your child's SLP in the decision. Plan for ongoing customization rather than a one-time setup. The vocabulary that fits your child at four looks different from what they need at seven. What you build with it over time is what opens language.