AAC doesn't stop kids from talking
A 2018 systematic review by Schlosser and Wendt looked at 23 studies of AAC use in children with developmental disabilities and found that kids using AAC made spoken language gains equal to or greater than those in speech-only intervention. A 2019 follow-up meta-analysis by Millar and colleagues confirmed this with additional studies, and earlier work from Romski and Sevcik, Diane Paul, and others points to the same conclusion.
The reason makes sense once you hear it laid out: AAC gives a child a way to communicate successfully right away. That success calms a lot of the frustration around not being understood, and it strengthens the loop of wanting something, expressing it, and getting a response. Kids who use AAC tend to engage more socially, and they often start producing spoken approximations right alongside their device use. It's common for a child to begin saying words for the same items they've been pressing on their device, sometimes within months of starting.
So if someone tells you AAC will keep your child from talking, they've got it backwards. Set that worry down. The research just doesn't back it up.
AAC is bigger than a tablet
People hear "AAC" and picture a kid with a big tablet strapped to a wheelchair. That's one version, but the real range is much wider.
At the no-tech end, there's sign language, gestures, and body positioning: nothing you need to buy or charge. A child pointing at the fridge is technically using unaided AAC already. One step up is low-tech AAC: picture cards, communication boards, PECS books, choice boards, anything printed and physical that a child hands over or points to. Then there's high-tech AAC: dedicated speech-generating devices and iPad apps like Proloquo2Go, LAMP Words for Life, and TouchChat, where the device speaks aloud when the child taps a button. Most autistic kids who use AAC end up mixing all three rather than sticking to one. Signs and gestures cover quick, in-the-moment needs. A high-tech device handles more complex messages. Low-tech backups step in when the iPad's dead or got left at home. Think of it less as picking one tool and more as building out a whole toolkit.
When to start
Start exploring AAC as soon as your child is over 2 with significantly limited spoken language, or shows clear communication intent (reaching, leading you to things, pointing) without producing words. Frequent communication-related meltdowns are another sign worth paying attention to, especially the kind where your child clearly wants something and just can't get the message across. And if your SLP brings it up at an eval, that's your cue too. You don't need a formal diagnosis to start low-tech AAC. Picture cards on the fridge, a print-out PECS book, a free CoughDrop account, the iOS built-in accessibility AAC: any of these can happen this week with no professional involvement at all. The bigger apps (Proloquo2Go, LAMP) work best when set up with SLP guidance, which usually means waiting for the eval. But waiting for the eval doesn't mean waiting to communicate.
PECS and the power of handing someone a card
PECS, or the Picture Exchange Communication System, is the original structured low-tech AAC approach. It was developed for autistic kids in the 1980s and is now used all over the world. The idea is simple: a child physically hands a picture card to another person to ask for something. That handoff is the communication itself. PECS unfolds across six phases. First comes a single picture exchange for something the child really wants. Then persistence and distance, where the child has to travel to get the picture and find the person to hand it to. Third is picture discrimination, choosing the right card from several options. Fourth is building a simple sentence ("I want" plus the picture). Fifth is responding to "what do you want?" And sixth is commenting. For parents starting at home, the first three phases are where most of the useful work happens. Phase four and beyond tend to go better with formal training behind them. The appeal of PECS is that it's concrete and unambiguous, and it builds the back-and-forth of requesting and responding without needing any electronics. Hand a card, get a thing. The cause and effect is obvious to a kid in a way that's hard to argue with. It does have real limits, though. You can only carry so many cards, so vocabulary stays small. Once a child wants to say something more complex, the system gets slow. It also only works if the other person is right there and paying attention, which makes it less portable than an app on a device. You can start PECS at home for free. Print cards from any of the many free PECS card sites, laminate them, and stick velcro on the back. Begin with five to ten cards covering the things your child is most motivated by (favorite snacks or toys work well) and practice the basic exchange a few times a day during snack time or play. If you want to go further, Pyramid Educational Consultants runs a formal PECS training program, though it's not something you need in order to get started.
The three apps most families consider
Proloquo2Go
This is the default pick for most families on iPad: a symbol-based communication system with deep customization and a strong vocabulary right out of the box. It runs $250 as a one-time purchase, and insurance covers it in most cases with a doctor's prescription. It uses the built-in Crescendo vocabulary system, and its biggest asset is the community around it: a huge base of users, plenty of training resources, and availability in multiple languages. The setup does matter, and it's worth doing with an SLP's input, since the default vocabulary is good but rarely fits any one kid perfectly without some tweaking. For most families, the search ends here unless an SLP specifically steers them elsewhere.
LAMP Words for Life
LAMP is built around Language Acquisition through Motor Planning, meaning every word lives in the exact same spot every time, so a child builds motor memory for it. It works something like learning to type: after a while you don't hunt for the "e" key, your finger just goes there. Pricing is $300 one-time and insurance-covered, with a LAMP-specific vocabulary system organized for that motor consistency. It tends to work especially well for kids who benefit from consistent motor patterns, often building fluency faster for the right profile, but it has a steeper learning curve and is best set up with a LAMP-trained SLP. It's also less visually customizable than Proloquo2Go, which matters for some kids. If a LAMP-trained SLP recommends it, go with that. If nobody's pointing you toward it specifically, Proloquo2Go is the safer first choice.
TouchChat with WordPower
TouchChat is another full-featured AAC app, popular in clinical settings, especially paired with the WordPower vocabulary system. It runs $150 to $300 depending on configuration and is insurance-covered. The vocabulary system is well-regarded clinically and comes in several variants by age and ability, though TouchChat has less name recognition outside clinical circles, so you'll find fewer YouTube tutorials and parent forums to lean on. The choice between Proloquo2Go and TouchChat often just comes down to what your SLP knows best, and that's a perfectly fine way to decide.
A few others worth knowing about
Avaz runs $75 to $99 and offers reasonable quality, a good option for families paying out of pocket who need something now. CoughDrop has a free tier plus a paid premium version, works on the web and as an app, and makes a solid entry point for testing AAC before spending real money. Speak for Yourself has a smaller user base but is well-designed, and some SLPs swear by it. And Apple now builds basic AAC into iOS accessibility settings: it's free and less full-featured than the dedicated apps, but a starting point is still a starting point.
PECS vs Proloquo2Go vs LAMP: How They Compare
| Factor | PECS | Proloquo2Go | LAMP | |--------|------|-------------|------| | Cost | $0-50 | $250 | $300 | | Setup difficulty | Low | Medium | High | | SLP involvement needed | Optional | Recommended | Strongly recommended | | Portability | Medium | High | High | | Vocabulary growth | Limited | Extensive | Extensive | | Motor planning consistency | N/A | Customizable | Built-in priority | | Insurance coverage | No | Often yes | Often yes | | Time to start | Today | After SLP setup | After LAMP-trained SLP setup |
If you want my honest take: start PECS at home this week, since there's nothing stopping you from doing that today. Move to Proloquo2Go once the SLP evaluation happens and a device gets approved. LAMP is worth considering only if a LAMP-trained SLP specifically recommends it for your child.
Getting Insurance to Pay
A dedicated AAC device or app counts as medically necessary equipment under most US insurance plans, as long as a doctor or SLP prescribes it. Here's how the process usually runs: an SLP evaluates your child and recommends a specific device or app, then writes up a justification report. A doctor, often the pediatrician or a developmental pediatrician, signs off on it. From there, the request goes through an SGD (Speech Generating Device) supplier for insurance approval, and once approved, the device or app code gets issued.
Plan on this taking three to six months. When the paperwork is solid, insurance approves it in most cases.
If you get a denial, don't treat it as final. Appeal with stronger documentation, and ask the SLP to sharpen the justification letter around specific functional goals. It's also worth checking your state's Medicaid waiver programs, since some cover AAC even for kids who don't qualify for general Medicaid. And if you can swing it, buying the app directly ($250 to $300) while the appeal works its way through isn't a bad idea: every month of waiting is a month your child spends without a way to communicate.
While you wait, there are ways to keep things moving that cost little or nothing: the AAC accessibility features already built into iOS, the free tier of CoughDrop, printed PECS cards, or a simple choice board you put together yourself with a printer and some velcro.
Where LittleWords Fits (and Doesn't)
The AAC community has good reason to be wary of new apps crowding into their space, so it's worth being straightforward about what this one actually is.
LittleWords.ai is a play-based speech companion app. An AI character named Buddy leads sound games, social scripts, and regulation support. It's not an AAC device, it's not built as a primary communication system, and it isn't a substitute for Proloquo2Go or LAMP.
If your child needs AAC, they need AAC, full stop. LittleWords sits in a different category: a practice and engagement tool for kids working on speech development. The two can work side by side (a child might use Proloquo2Go for daily communication and LittleWords for play-based practice), but neither one replaces the other.
How to Introduce AAC at Home Without Overthinking It
Once you've got a device, or you're starting with low-tech tools, the biggest lever by far is modeling. Use the device alongside your own spoken words: press the buttons for "want," "more," "eat" while you say them out loud, so your kid watches you use the system. This is called "aided language stimulation," and it's the single highest-value thing you can do. Don't quiz them on it: skip the "where's eat?" pointing routine and just use it yourself, naturally, without turning it into a test.
Keep the device out and available all the time, at every meal, in the car, on the couch, not locked away for some designated "therapy time." Accept every attempt at communication, whether it's a press, a gesture, or a grunt, and honor whatever they say with it. If they press "outside," go outside. Communication only works if it produces real outcomes, and a kid who presses a button and gets ignored stops trusting the system pretty fast. That's a hard rule to follow at 7:30 AM in January, but stick with it when you can. And don't pressure them to perform with it: no "show me how you say it on your talker." Model, and wait. The first few weeks usually feel like nothing's happening, like you're pressing buttons into a void. Then one day your kid presses one on purpose, looks at you, and something clicks. Usage tends to take off from there.
Setting up AAC beyond the basics is worth doing with an SLP who actually has AAC training. Ask them directly what that training looks like: certificate programs, training in specific apps (Proloquo2Go certification, LAMP training), or continuing education in language-driven AAC approaches are all good signs. If an SLP calls AAC a "last resort," that's your cue to look for someone else.
If you want more on working with your SLP at home, our speech therapy at home guide for autistic kids covers that in more depth.
Common questions about starting AAC
A two-year-old with 20 words probably doesn't need AAC urgently, though it's not too early either. If progress keeps moving, sticking with speech work alone is reasonable. But if that progress stalls, or your kid gets visibly frustrated at not being understood, adding AAC alongside speech therapy makes sense.
If a pediatrician says AAC will make a child lazy, that idea is outdated and has been contradicted by research (Schlosser and Wendt 2018 is the citation most people point to). Worth sharing with them, or worth finding a pediatrician who's caught up on the evidence.
You don't need to master an entire system before you introduce it. Start with 10 to 20 core words and build from there; the basic categories (people, actions, descriptors, social phrases) tend to make sense as you go. Waiting until you feel like an expert is just another way of stalling.
If your kid presses the same button over and over, that's normal for early use. They're figuring out that pressing it gets a consistent result, so treat each press as meaningful and respond to it. For most kids, the range of what they communicate widens within weeks.
Some kids end up using AAC as their primary mode and never rely much on speech, and that's a legitimate outcome, not a failure. AAC is a full communication system on its own. Plenty of AAC users hold jobs, keep relationships, and communicate complex thoughts entirely through it. Speech is one possible outcome of language development, not the only one that counts.
AAC and sign language work fine together, too. Lots of families use signs for fast, frequent things at the table, like "more" or "all done," and lean on a high-tech device for longer or more complex messages. The two support each other rather than compete.
For more on getting started, see where to begin when your autistic child isn't talking yet, browse a rundown of speech therapy apps worth trying, or check out what to do while you're stuck on a speech therapy waitlist.
AAC isn't a last resort you pull out when everything else fails. It's a tool, and the plain truth is that kids who start early and use it consistently tend to do better, in spoken language and in communication overall, than kids whose families wait. So don't wait.
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