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LAMP vs Proloquo: Which AAC System Fits Your Child

Last October, a mom named Rachel in Raleigh, NC sat at her kitchen table with two iPads side by side, LAMP Words for Life open on one, Proloquo2Go on the othe

Last October, a mom named Rachel in Raleigh, NC sat at her kitchen table with two iPads side by side, LAMP Words for Life open on one, Proloquo2Go on the other. Her four-year-old, Marcus, had just been evaluated for AAC by a private SLP. "She told me either one could work," Rachel said, "but that they'd work for different reasons. I spent $550 buying both before I understood what she meant." Six weeks later, after trials with both, Marcus's therapist recommended LAMP. He'd taken to the fixed button locations like a kid memorizing a piano piece. Rachel donated the Proloquo license to another family at the clinic.

That story captures the whole tension of this decision. Both apps are excellent. Both are evidence-informed. But they are built on fundamentally different philosophies, and the right pick depends on your kid's specific motor and cognitive profile, not on which one has better reviews in the App Store.

This article assumes you are working with a clinician. AAC selection is a clinical decision.

LittleWords is a speech-practice companion. It is not an AAC system and is not a substitute for LAMP, Proloquo2Go, or any other AAC.

Two Philosophies, One Goal

LAMP (Language Acquisition through Motor Planning) was developed by SLP John Halloran and is rooted in motor learning research. The core idea: consistent motor patterns help the brain learn language the same way consistent motor patterns help the brain learn to tie shoes or ride a bike. In LAMP Words for Life (the iPad app, roughly $300 one-time, developed by Prentke Romich Company), every word lives in the same spot on the screen, always. The button for "more" is in the same location whether your child is at the 1-hit, 2-hit, or full vocabulary level. The child builds muscle memory for language.

Proloquo2Go, developed by AssistiveWare, takes a different bet. It uses the Crescendo vocabulary, which scales from 14 core words up to thousands, organized by linguistic category and frequency. Words can be navigated through folders or accessed directly. Customization is extensive: words can be added, hidden, rearranged, reorganized entirely. Roughly $250 one-time on the App Store.

Think of it this way. LAMP is a QWERTY keyboard. You learn where every letter lives, and eventually your fingers know the way without your eyes. Proloquo is more like a smartphone home screen you can rearrange, where the layout adapts to how you actually use the thing.

The Real Tradeoff

Here's the thing: consistency and flexibility are genuinely in tension.

LAMP's fixed layout means the motor system can automate communication over time. That's powerful. But it also means you can't easily reorganize words to match a specific context, a field trip, a holiday, a new obsession with trains. The structure is the point.

Proloquo's flexibility means the vocabulary can be tailored to fit your child's world in fine detail. But every customization potentially disrupts spatial memory. The child may need to visually scan for words rather than reaching for them automatically.

Both are real strengths. Neither is a flaw. They serve different kids.

Kids Who Tend to Thrive with LAMP

A few profiles where LAMP usually clicks:

Kids with strong motor learning. If your child picks up physical skills quickly (even if speech itself is difficult), LAMP's motor planning approach gives that strength a channel. Once a word location is learned, it sticks.

Kids with apraxia or motor speech challenges. There's a logic here: if the mouth has trouble planning speech movements, the hands may be a more reliable motor system. LAMP gives the hands a consistent map.

Kids who need predictability. Some autistic children genuinely relax when things don't move. Buttons stay where they were yesterday. That predictability reduces cognitive load and supports independent use.

Families with LAMP-trained SLPs nearby. If your therapist or school team already knows LAMP, that matters more than most parents realize. Community support around a system is half the battle.

Kids Who Tend to Thrive with Proloquo

Kids with strong visual processing. A child who can scan a busy screen and pick out what they want often does well with Proloquo's flexible layout.

Kids whose lives need heavy customization. Specific interests, family members with unusual names, bilingual households, complex daily routines. Proloquo's customization tools handle all of this well.

Multilingual families. Proloquo2Go has strong multilingual support. If your household operates in two or three languages, this matters.

Older users moving toward literacy. Proloquo has solid literacy supports for kids developing reading skills alongside AAC use.

Families already owning an iPad. Both apps run on iPads, but Proloquo doesn't require a dedicated device ecosystem. If an iPad is already in the house, the barrier to entry is lower.

Modeling Is the Whole Game

I'm going to be blunt about this, because it's the single most important thing in the article: the app you choose matters less than whether the adults around your child use it.

Aided language stimulation (ALS) is the practice of modeling on the device. The adult taps the words while saying them aloud, in real conversations, throughout the day. ALS is what teaches the child how the system works. Without it, even the perfect app sits unused.

LAMP's fixed motor patterns make modeling predictable. Your hand goes to the same place every time you model "want" or "go" or "more." Some adults find this easier to internalize. Proloquo's flexibility means modeling can adapt mid-conversation, which some adults find more natural after an initial learning curve.

Either way, you (and grandparents, and teachers, and siblings) need to learn to model on the device. Every day. In real contexts. Multiple times per interaction. This is the work.

AAC failures are almost always failures of modeling, not failures of system choice. The "wrong" system with extensive modeling produces better outcomes than the "right" system gathering dust on a shelf. If you can only invest energy in one thing, invest in modeling. AssistiveWare has free modeling guides on their site worth bookmarking.

Cost, Funding, and the Dedicated Device Question

Both apps land around $250 to $300 one-time. Both can be funded through insurance or Medicaid as speech-generating devices when paired with a dedicated iPad and proper SLP documentation. The funding process is similar for both, so don't let price drive the decision. They're essentially the same cost.

On dedicated devices vs. personal iPads: PRC sells dedicated hardware that runs LAMP. AssistiveWare doesn't sell devices, but Proloquo2Go can be installed on an iPad locked to the AAC app using Guided Access.

For some kids, a dedicated device is the right call (fewer distractions, clearer signal that "this is my voice"). For others, a personal iPad works fine. An SLP can help you figure out which.

Other Systems Worth Knowing

LAMP and Proloquo get the most attention, but they're not the only options:

TouchChat with WordPower. Word-based vocabulary, more text-oriented. Often a good fit for older kids transitioning to literacy.

CoughDrop. Web-based, cross-platform, subscription model. More affordable entry point. Supports multiple vocabulary systems including LAMP and PODD layouts.

PODD (Pragmatic Organization Dynamic Display). A specific vocabulary system that runs on multiple apps, with a strong evidence base for complex communicators.

Snap Core First. Tobii Dynavox's system, with pre-made boards and flexible layouts.

The choice space is wide. An AAC-trained SLP can help you navigate it.

Where LittleWords Fits (and Doesn't)

LittleWords is not an AAC system. It's a speech-practice companion your child interacts with for short sessions focused on emerging verbal speech.

A child using LAMP or Proloquo can also use LittleWords as a supplemental tool. They serve different functions entirely and don't compete. Think of it like the difference between a wheelchair (mobility, independence, essential) and physical therapy (building strength, separate goal). One doesn't replace the other.

Getting the Right Evaluation

For this decision, you need an AAC-trained SLP. Not all SLPs are. Ask specifically. If your current therapist isn't AAC-trained, ask for a referral.

In the US, AAC evaluations can come through early intervention, school IEPs, or private practice. Insurance often covers the evaluation. Medicaid frequently covers both the evaluation and the device. The process takes patience, but the funding pathways exist.

My honest opinion: the biggest mistake families make isn't picking the wrong app. It's skipping the formal evaluation and choosing based on a Facebook recommendation. Get the assessment. Let the data point you somewhere.

FAQs

Which is better, LAMP or Proloquo? Neither is universally better. The right one depends on your child's motor, cognitive, and sensory profile. An AAC-trained SLP makes this call based on assessment, not brand loyalty.

Can my child switch from one to the other later? Yes, but it's a significant transition. The motor patterns of LAMP and the navigation patterns of Proloquo are different enough that switching means substantial relearning. Try to get the match right the first time.

Do schools support both? Most do. Some have a preferred system or stronger in-house expertise with one. Ask your school's AAC specialist before buying.

Will my child speak verbally if they use LAMP or Proloquo? Possibly. AAC use does not delay verbal speech and often supports it. Some AAC users develop verbal speech alongside the device. Others use AAC as their primary communication mode long-term. Both outcomes are valid.

Should I get a dedicated device or use an iPad? Depends on your child and household. A dedicated device minimizes distractions. A personal iPad is more flexible and cheaper up front. An SLP can help you weigh the tradeoffs for your specific situation.

How long does it take to see results? Expect weeks to months of consistent modeling before your child starts using the system independently. This is normal. Language acquisition through AAC follows the same general timeline as spoken language acquisition: lots of input before output.

Can I trial both before committing? Some clinics and lending libraries offer trial periods. Ask your SLP or contact your state's assistive technology program. Rachel's approach of buying both works if you can afford it, but most families can't, and a good evaluation should prevent the need.

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Related reading: AAC for autism hub · Speech therapy at home for autistic kids (pillar guide) · PECS vs Proloquo · AAC for toddlers

Related Little Words guides

Important: Little Words is educational support for home practice. It is not a medical device, not an AAC replacement, and not a substitute for a licensed speech-language pathologist, pediatrician, or developmental evaluation.