The four apps worth your time
These have the strongest track records for toddlers right now.
Proloquo2Go (AssistiveWare)
The most widely used symbol-based AAC app in the US. Built around Crescendo vocabulary, which is research-informed and grows with the child from single-word to full-sentence communication.
- Platforms: iPad, iPhone
- Cost: roughly $250 one-time
- Strengths: huge customization, strong literacy supports, regular updates, AssistiveWare's research and support ecosystem
- Best for: kids with full visual access, decent motor control, and the cognitive flexibility for symbol-based language
LAMP Words for Life
Motor-planning-based AAC built around the LAMP (Language Acquisition through Motor Planning) approach. Icons stay in the same place across the entire vocabulary, so the child learns the motor pattern for each word: same buttons, same spots, every time, like muscle memory for language.
- Platforms: iPad
- Cost: roughly $300 one-time
- Strengths: consistent motor planning, evidence-based for kids with motor learning strengths, strong autism research base
- Best for: kids whose motor learning is intact and who benefit from consistent button locations
TouchChat with WordPower
Word-based AAC with multiple vocabulary options, including WordPower, which blends single words with pre-stored phrases.
- Platforms: iPad, iPhone
- Cost: roughly $150 to $300 depending on vocabulary
- Strengths: flexible vocabularies, solid literacy supports, widely used in schools
- Best for: kids ready for word-based (rather than purely picture-based) communication, often slightly older toddlers
CoughDrop
A web-based AAC platform that runs on iPad, Android, Chromebook, and browser. More affordable than the others, with a subscription model.
- Platforms: cross-platform
- Cost: $6 to $25 per month depending on plan
- Strengths: cross-device, lower entry cost, customizable, supports multiple vocabularies including LAMP and PODD layouts
- Best for: families on tighter budgets, families who need cross-device flexibility, kids using multiple devices
What's behind the apps: the vocabulary frameworks
You'll hear these names constantly, so here's what they mean. Crescendo is the vocabulary inside Proloquo2Go: it grows from 14 words to thousands, developed by AssistiveWare and grounded in research on core word frequency. LAMP (Language Acquisition through Motor Planning) is the approach that emphasizes consistent button location for motor learning, and it powers LAMP Words for Life. WordPower mixes core single words with pre-stored phrases and shows up in TouchChat. PODD (Pragmatic Organization Dynamic Display) is an aided language stimulation approach by Gayle Porter, available in CoughDrop and other apps, with a strong evidence base especially for complex communicators.
The sequence matters: pick a system, then pick the app that runs it. Or better yet, work with an SLP to find a system that fits your child in the first place.
Making the actual decision
Start with an SLP evaluation, not with an app store search. This is a clinical decision. An SLP trained in AAC will assess your child's motor abilities, cognitive level, sensory profile, and communication needs, then recommend a system. You can fund this through early intervention (free, US, birth to three), the public school IEP process (free, three to twenty-one), a private SLP with insurance coverage, or an AAC trial through a manufacturer.
Most AAC apps can be trialed, and you should insist on it. A good SLP will let your child try Proloquo2Go for two to four weeks before recommending it, and the same goes for LAMP, TouchChat, or CoughDrop. The trial is the only reliable way to know if it fits: spec sheets and Amazon-style reviews don't predict whether your specific child will engage with a specific system.
Once the system is chosen, the funding path depends on whether you need a dedicated device or just the app. Dedicated speech-generating devices can be funded through insurance and Medicaid as "durable medical equipment." iPad-based AAC can sometimes be funded but is more often paid out of pocket, and schools sometimes provide AAC as part of an IEP.
Here's the part most families underestimate: once the system is in the house, every adult who interacts with your child needs to know how to use it, from you and your partner to grandparents, daycare staff, and the therapy team. AAC works because of consistent modeling across environments, and it fails when only one person knows the device. Buying the app without committing to modeling is buying a very expensive paperweight.
Does it have to be a dedicated device?
A common question is whether you can put an AAC app on a regular iPad instead of buying a $10,000 dedicated device. Yes, and lots of families do, though the trade-offs are real. An iPad is cheaper, more flexible, easier to update, and carries less stigma in some settings. Where it falls apart is that the iPad comes loaded with other apps and distractions: kids sometimes drift to YouTube or games and the AAC gets buried. Some children genuinely do better with a dedicated device because it has one purpose. It's a communication tool, not a toy.
A practical compromise many SLPs recommend is a dedicated, locked iPad with only the AAC app installed and "guided access" turned on so the child can't exit it. You get device-like focus at cheaper hardware cost.
Why toddlers need a different approach
For our purposes, toddlers means roughly age one to four. Selecting AAC for this age range differs fundamentally from selection for older kids. Motor skills are still developing, so button accuracy matters. Cognitive development is still building, so vocabulary size and complexity matter. Visual scanning is still maturing, so page complexity matters. And the child can't self-advocate for what works, so you and the SLP have to read them.
The general rule is counterintuitive: start with a system that can grow with the child. Don't start with a tiny eight-button board planning to "upgrade" later. The brain learns the motor patterns and conceptual organization of whichever system you introduce first, and switching systems is painful, a bit like learning to type on a QWERTY keyboard and then being told at age five to switch to Dvorak. Start with the real system. The child will grow into it.
I'd call this the single most important principle in toddler AAC, and it's the one that gets violated most often by well-meaning families and underprepared therapists.
Mistakes that cost real time
Picking by price alone is a common one. AAC is one of the most consequential purchases for a non-speaking child, and saving $100 by picking the wrong app can cost months of lost communication momentum.
Skipping the SLP is another. You can pick the wrong system in ten minutes just by reading reviews, while an SLP trained in AAC can save you months of false starts.
And then there's waiting for speech to "come in." Many families delay AAC hoping verbal speech will develop naturally. The research is clear that AAC does not delay speech, it supports it (Schlosser & Wendt, 2008). Earlier is better, full stop.
Where LittleWords fits
LittleWords is a speech-practice companion built around an AI character (Buddy) who plays with the child, designed to support emerging verbal speech in a play-based, ND-affirming way. It is not an AAC system. It doesn't provide a vocabulary your child can use to communicate with you, and it doesn't function as a primary communication tool on a tablet.
If your child needs AAC, they need a real AAC system. LittleWords can sit alongside that AAC as practice time for emerging verbal speech, but it doesn't substitute for it. We're clear about this and plan to stay that way.
When to bring in a specialist
The moment AAC is on the table, you should be working with an SLP trained in AAC. Not every SLP has this training since it's a specialty within speech pathology, so if your current therapist doesn't have deep AAC experience, ask for a referral to someone who does.
If you're in the US and your child is under three, call your state's early intervention program: they're required to evaluate for AAC if it's appropriate. If your child is over three, the public school carries the same obligation through the IEP process.
No, AAC won't stop your child from talking. Research going back to Schlosser and Wendt, 2008, and plenty of studies since, is consistent on this point: AAC supports speech rather than delaying or replacing it, and many kids who use it go on to develop verbal speech right alongside their device. PECS is worth mentioning too, since a lot of parents ask about it as an alternative. It's a legitimate low-tech option and works well for some kids, especially as a starting point. Most SLPs see it as a bridge, though, and recommend moving to a fuller AAC system as the child grows. It's not really meant to be a permanent substitute. Cost is usually the next question. A solid AAC app runs $150 to $300 as a one-time purchase, while a dedicated AAC device is a bigger investment at $5,000 to $15,000, though that's typically covered through insurance or Medicaid. If you'd rather pay monthly, subscription apps like CoughDrop run $6 to $25 a month. If your toddler just turned one, you haven't missed a window. It's not too early. Even babies can engage with simple AAC systems, and the earlier it's introduced, the earlier the brain starts learning that language. LittleWords, for what it's worth, isn't an AAC system at all. It's a speech-practice companion that can sit alongside a child's AAC setup just fine. They're built for different jobs. As for how long it takes a toddler to pick up an AAC system, that varies a lot from child to child, but most families notice real engagement within one to three months of using it consistently and modeling it themselves. What matters most isn't the child's ability. It's how often the adults around them actually model the device. For more on this, see the best speech therapy apps hub, the pillar guide on speech therapy at home for autistic kids, a deeper look at whether AAC stops a child from talking, or the comparison of LittleWords vs AAC. You might also find it useful to browse parent guides on the site, or read up on 10-minute speech practice for toddlers who won't sit still, what 10 minutes a day actually did for one child's speech, whether a 3-year-old's speech should be 75% understandable to strangers, whether it's normal for a 4-year-old to still be hard to understand, how to get an AAC device through insurance, or starter guides on AAC for autism, AAC for autism in plain English, and AAC for toddlers: when and how to start.