How to trial an AAC device before buying: a parent's guide

Last updated 2026-07-11

Why trial before you buy

AAC devices range from about $200 for a basic speech-generating app on a tablet to over $8,000 for a dedicated system like a Tobii Dynavox or PRC-Saltillo device ^[1]. That price spread alone is reason enough to test before committing. But the bigger issue is that the right device depends entirely on the child. A system that works beautifully for a child with good fine motor control and strong visual memory can be completely unworkable for a child with apraxia of speech. There's no way to know which device fits your child from watching a demo video.

The American Speech-Language-Hearing Association (ASHA) treats feature matching to the individual communicator as the core of the selection process, and says a trial period with the device should happen before any purchase recommendation is finalized ^[2]. This isn't a nice-to-have. It's the professional standard.

A trial also reveals things no spec sheet can tell you: whether your child will tolerate the device's weight, whether glare in your actual living room washes out the symbols, whether the school team will actually use it every day or leave it zipped in a backpack. Four weeks of real use answers those questions. An expo demo never will.

Worth knowing too: insurance and Medicaid funding often require documented trial evidence before they'll authorize payment, so skipping a formal trial can slow down the money side of things later.

Where to find a free trial

There are four main routes worth pursuing, and nothing stops you from running more than one at the same time.

Your child's speech-language pathologist is the first call. An SLP who specializes in AAC often keeps a small lending library, or has standing relationships with manufacturer loan programs and can borrow a unit on your behalf. Because the SLP runs the trial, you get real usage data instead of a few hours of play. If you don't have an SLP yet, speech therapy and speech therapists are a good place to start looking.

Every U.S. state also runs at least one federally funded assistive technology program under the Assistive Technology Act of 2004 (Public Law 108-364) ^[3], and most include device demonstration and short-term loan programs built specifically for pre-purchase trials. Loan periods vary by state but usually last 2 to 6 weeks. The AT3 Center keeps a searchable directory of every state program at assistivetech.net ^[4]. If your child qualifies for special education services under IDEA, the school district has to consider AT devices and services as part of a free appropriate public education (FAPE), and an AT evaluation through the school can include a structured device trial at no cost to you ^[5]. Request it in writing as part of your child's IEP or evaluation process.

Finally, most major manufacturers, PRC-Saltillo, Tobii Dynavox, Lingraphica among them, run clinical trial programs of their own, typically 30 to 60 days, arranged through an SLP or AT specialist. The device usually arrives preconfigured with a vocabulary set the SLP recommends. Contact the manufacturer's clinical team directly, or have your SLP start the request.

How long a trial should run

Plan on at least 4 weeks of consistent daily use. There's no single magic number in the research, but the clinical consensus treats four weeks as the floor for drawing any real conclusion ^[2]. Many clinicians prefer 6 to 8 weeks for children who need more time to adjust or who have complex motor profiles.

Two weeks probably isn't enough. Children with communication delays often go through an adjustment period where the new system feels awkward and use actually dips before it climbs. Stop at the two-week mark and you may be measuring the low point, not the trend.

Keep a simple log during the trial: how many times a day your child initiated communication with the device on their own, which vocabulary pages they returned to, which features they ignored. Your SLP should give you a structured data sheet or observation form for this. That log doubles as evidence for insurance if you pursue funding later.

School-based trials add a wrinkle, since school schedules mean your child might only touch the device for 5 or 6 hours on school days and not at all on weekends, unless the district sends it home. Negotiate home use from the start. Under IDEA, a district-provided AT device can go home if the IEP team decides the child needs it there to receive FAPE ^[5].

Using your state's AT lending library

The Assistive Technology Act of 2004 requires each state to run a statewide AT program with, at minimum, a device demonstration program and a device loan program ^[3], and most states run both. Device loan programs lend AAC systems and other equipment to families for a trial period, usually free or for a small refundable deposit.

To find your state's program, go to the AT3 Center directory at assistivetech.net ^[4]. Enter your state and you'll get contact information for the program, its loan library, and any regional demonstration centers. Some states, like Georgia's Tools for Life, run regional hubs that will come to your home or your child's school for a hands-on demonstration.

The process usually goes something like this: you call or fill out an online request form, describe your child's needs, and a specialist helps you narrow the field to two or three devices worth trying. They ship or hand-deliver the device with setup guidance, you use it for the agreed window (often 4 to 6 weeks), then send it back. No cost, no obligation to buy.

One catch worth flagging: popular high-end speech-generating devices sometimes have waitlists. Apply early, even while you're still in the evaluation phase with your SLP. The waitlist and the clinical trial can overlap and run at the same time.

What about a school-provided trial?

Yes, this is available, and it's one of the most underused options for school-age children. Under the Individuals with Disabilities Education Act (IDEA 2004), assistive technology must be considered for every child with an IEP ^[5], and that consideration isn't a checkbox exercise. If the IEP team believes AT could help a child access their education or communicate, the district must provide an AT evaluation, and that evaluation can and should include a device trial.

The key is putting the request in writing. Send a letter to your child's IEP team or special education director asking for an AT evaluation that includes a trial period with AAC devices. The district has 60 days, or whatever timeline your state specifies, to respond. Some districts have their own AT specialists; others contract with regional educational service agencies that keep loan libraries.

This route matters most for children receiving early intervention services or transitioning from Part C to Part B, since communication support tends to come up during the IFSP or the initial IEP process.

One thing worth knowing: the school owning a device doesn't mean your family owns it. A device the district buys stays with the district unless the IEP team decides the child needs it at home to benefit from FAPE. Push for home access in writing, because AAC learning doesn't stop at 3 p.m.

What should you actually evaluate during a trial?

A trial without a framework is just borrowing a toy. You want to walk out with data that answers specific questions, not a vague impression.

Start with motor access: can your child reliably hit targets on the screen, and what grid size actually works for them, 9-cell, 12-cell, or 42-cell? If direct touch isn't reliable, does the device support switch access or eye gaze? Then look at vocabulary organization. Does the system match how your child thinks and talks? Core word systems like LAMP Words for Life or TouchChat HD with WordPower organize language differently than fringe-heavy systems, so pay attention to which pages your child gravitates toward and which ones they never touch.

Durability matters more than people expect. Drop the device, or simulate the drops your child would produce. Wipe a wet cloth across the screen. Take it into bright sunlight outdoors. This is going to be your child's voice, so it has to survive an actual day. Also time how long it takes your child to build a 3-word message. Faster isn't automatically better, but if the pace is so slow that your child gives up on the sentence halfway through, that's a real problem worth flagging. Don't overlook fit with the people and places around your child, either. Does the teacher know how to use it? Can it come along to the grocery store without a fight? These things matter more than any spec sheet suggests.

For children with apraxia of speech, motor learning research points toward an AAC system with consistent motor patterns, since planning new movements is harder for these kids. Ask your SLP specifically about motor learning principles when you compare options, and see our piece on childhood apraxia of speech for more.

Keep a daily log while you trial: initiations per day, which vocabulary pages get used, refusals, any behavior changes. Bring that log to the post-trial meeting with your SLP.

Which devices come up most often in trials?

A handful of systems dominate the market, and most state AT loan programs and manufacturer trial programs stock them. Below is a factual overview based on published device information, not a ranking or endorsement.

Prices are approximate and change often, so check with the manufacturer before you make any financial decision ^[1]. Our guide to AAC devices covers the options in more depth.

For younger children or anyone just starting out with AAC, low-tech options like paper communication boards and simple voice output devices deserve a trial too. Test before you commit, no matter the price point.

How does a trial affect insurance or Medicaid coverage?

This is where a trial pays for itself, literally. Most private insurance plans and state Medicaid programs that cover AAC devices, under durable medical equipment or the speech-generating device category, require documentation of medical necessity. That documentation almost always includes an SLP report describing the results of a structured device trial ^[6].

Medicaid follows CMS guidance that speech-generating devices are covered when someone has a severe speech impairment and the device is their primary means of functional communication. The SLP's funding letter, which lays out what was trialed, how the child responded, and why the recommended device is the least costly option that meets the child's needs, sits at the center of that application ^[6].

A trial that produced no data is a funding obstacle. One that produced six weeks of daily logs, video clips, and a detailed SLP report is a funding asset. Reviewers want evidence that this specific device is necessary for this specific child, and generic statements won't hold up where specific trial data will. Some families try to shortcut the process by buying the device first and seeking reimbursement afterward. That almost always fails. The coverage decision needs to come before the purchase, and the trial is how you build the case for it. If your child is on Medicaid, call your state Medicaid office or a Medicaid waiver program (many states run waivers specifically for children with disabilities) to learn their documentation requirements before the trial wraps up.

What to ask before you start a trial

Get clear answers on a few things before any device comes home. Who's responsible if it gets damaged? State loan programs typically have you sign an agreement, and some require a deposit or proof of homeowner's or renter's insurance; manufacturer trial devices usually carry their own liability clause, so know what you're signing. Can the device actually come home from school? If the trial is school-based, you need home access to see the full picture, and you should confirm this before the trial starts. Ask how the vocabulary is set up and whether you can change it: a device configured for a 35-year-old stroke patient is useless for a 4-year-old, so find out who sets up the vocabulary and whether they'll train you to customize it. Ask what support looks like during the trial, too. Will your SLP check in weekly? Is there a manufacturer hotline? What happens if the device won't charge on day 3? Find out what data you need to collect and why; an insurance letter requires specific data from your SLP, while a trial just for family decision-making can be looser. And nail down what happens when the trial ends: return logistics, the timeline for the SLP's written report, and next steps if you decide to buy. Get all of it in writing or a follow-up email.

What if you're rural or far from an AT center?

Geographic access to AAC specialists is a real gap. Rural families often have no local SLP with AAC expertise and no AT demonstration center within driving distance, and research on AAC service delivery has documented significant urban-rural differences in provider availability ^[7].

A few things actually help here. Many manufacturer clinical trial programs will ship devices straight to families with remote SLP supervision: Tobii Dynavox and PRC-Saltillo both have clinical teams who can work with a local SLP, even one with limited AAC experience, to run a remote-supported trial. Online speech therapy has also expanded a lot, and there are now telepractice SLPs who specialize in AAC specifically; ASHA's telepractice guidance notes that telehealth services can produce outcomes comparable to in-person care for many populations ^[8].

Your state AT program can also mail devices to you, so call and explain where you live. They've handled this before. And apps remain the most accessible entry point: several major AAC vocabulary systems (LAMP Words for Life, TouchChat, Snap Core First) offer free 30-day trials through their app stores, downloadable onto an iPad you already own. That's no substitute for a full SLP evaluation, but it's a real, immediate way to start watching how your child responds to different vocabulary layouts and symbol sets.

If your child is on the autism spectrum, some telehealth SLPs specialize in that population specifically and can supervise an AAC trial remotely.

When is an app enough instead of a full device trial?

Dedicated speech-generating devices and AAC apps aren't the same thing, but for many children, especially early on, an app trial is a legitimate first step. The practical upside: it costs little or nothing, you can use hardware you already own, and setup is fast. You get to watch your child respond to vocabulary organization, symbol size, and voice output before you commit to expensive hardware. The limits are real, though. Apps on consumer tablets lack the durability of dedicated devices: a Tobii Dynavox keyguard and ruggedized case is built for school-day wear in a way an unprotected iPad never will be. Motor access features like switch access and eye gaze are also more limited on general-purpose tablets, and insurance will almost never fund a consumer app as a primary AAC solution.

A reasonable path is to start with a free app trial on a tablet you own to get a read on vocabulary preferences, then use that to narrow things down to one or two dedicated devices to trial through your SLP or state AT program. The app trial informs the device trial; it doesn't replace it.

If you're still early in figuring out what your child needs, tools like Little Words can give you a starting point for understanding your child's communication profile before a formal AAC evaluation. And if your child's communication differences tie to a specific diagnosis, reading up on echolalia or echolalia meaning may help clarify what kind of AAC support fits best.

What happens after the trial ends?

Once the trial wraps up, one of three things usually happens.

Sometimes the device turns out to be a good fit. Your SLP writes a funding report documenting the trial results, how the device matches your child's needs, and medical necessity, and you submit that to insurance or Medicaid, or look into other funding like state disability programs or nonprofit grants from groups such as United Cerebral Palsy affiliates or Easterseals. Getting from application to device in hand often takes 3 to 6 months for insurance-funded devices, so it pays to start the paperwork right after the trial ends.

Other times the device just isn't right, and that's not a failure, it's what trials are for. Your SLP's notes on what went wrong narrow the field for the next attempt. Most families go through 2 to 3 systems before finding the one that works.

And sometimes the picture stays unclear. Four to six weeks isn't always enough, especially for kids with complex or inconsistent presentations. In that case the next step might be a longer trial, a different setup of the same device, or a consult with an AAC specialist at a university clinic or children's hospital.

Whatever the outcome, don't let the period after the trial drift without a follow-up already scheduled. That's the most common way AAC trials lose momentum, so book the post-trial review meeting before the trial even starts.

If you're newer to all this, it helps to step back and look at how speech therapy works more broadly and what you can realistically expect from it.

Frequently asked questions

Can I trial an AAC device without a speech therapist?

You can download AAC apps without any professional involved, and some makers (LAMP Words for Life, Snap Core First) offer free 30-day trials. But a trial run without SLP guidance produces no usable data for insurance funding, and it raises the odds of a poor match. If you want the trial to lead somewhere, get a licensed SLP involved, even by telehealth.

How much does it cost to trial an AAC device?

Most formal trials through state AT loan programs cost nothing, though some ask for a small refundable deposit or proof of insurance on the loaned equipment. Manufacturer clinical trials run through an SLP are usually free too, and app trials are free for the standard 30 days. You shouldn't have to pay to trial a device.

What age can a child start using AAC?

There's no minimum age. Research supports introducing AAC as early as it's clinically indicated, including for toddlers. ASHA's position is that AAC does not delay speech development, and some evidence suggests it actually helps. Children as young as 12 to 18 months have started on low-tech AAC systems when delays are caught early.

Will using an AAC device stop my child from learning to talk?

No, and this is one of the more stubborn myths out there. A systematic review by Millar, Light, and Schlosser found no evidence that AAC inhibits speech development, and some evidence that it supports it. ASHA's guidance states plainly that AAC does not suppress natural speech. Using a device alongside speech therapy is standard practice, not a replacement for working toward verbal communication.

How do I find an SLP who specializes in AAC?

ASHA's ProFind directory at asha.org lets you filter by specialty, including AAC. Children's hospitals, university clinics, and outpatient pediatric practices often have AAC-specialized SLPs on staff. It's also worth looking for clinicians who trained under the former ASHA AAC specialty certification program (it ended in 2020); a lot of experienced AAC therapists came through it.

What is the difference between a dedicated AAC device and an AAC app?

A dedicated device is purpose-built hardware, with ruggedized casing, specialized access options like switch or eye gaze, and a warranty meant for daily medical use. An app runs on a regular tablet or phone. Dedicated devices cost more but hold up better and are easier to insure. Apps are cheaper and simpler to trial but rarely qualify for insurance funding as a primary communication solution.

Can the school district deny an AAC evaluation request?

A district can't just ignore a written request for an AT evaluation if there's reason to think AT might help a child access their education. Under IDEA, the district has to either conduct the evaluation or give written notice explaining its refusal. If it refuses without that written justification, parents have procedural safeguards, including mediation and due process.

How do I get Medicaid to pay for an AAC device?

Medicaid covers speech-generating devices as durable medical equipment when a licensed SLP documents severe speech impairment and medical necessity, stating that the device is the least costly option that meets the child's needs. A documented trial is central to that report. You submit through your state Medicaid office, and processing often takes 60 to 180 days.

What if the device my child needs isn't available through the state loan program?

Contact the manufacturer's clinical team directly. Most major AAC makers (Tobii Dynavox, PRC-Saltillo, Lingraphica) will work with your SLP to loan a device for a clinical trial even if the state program doesn't carry it. Some nonprofits, including United Cerebral Palsy affiliates and Easterseals chapters, also keep small AAC lending libraries.

Can an AAC trial data sheet be used for insurance prior authorization?

Yes, and it's often required. Reviewers want objective evidence, not just clinical opinion. A daily log showing communication frequency, vocabulary use, and functional gains during the trial strengthens the SLP's funding letter considerably. Some insurers use specific forms, so ask your SLP's billing department what's required before the trial ends.

What if my child refuses to use the AAC device during the trial?

Refusal is common early on, and it tells you something. Notice what triggers it versus what gets acceptance: is the device too heavy, too slow, or loaded with vocabulary your child doesn't care about? Share those observations with your SLP. Refusal might mean the device is a poor match, or it might just mean the vocabulary setup needs adjusting. It doesn't automatically mean AAC is wrong for your child.

How long does it take to get a device after the trial if insurance approves it?

Typically 3 to 6 months from the end of the trial to device in hand, assuming the application goes in promptly. Some payers move faster, and Medicaid timelines vary a lot by state. Start the paperwork as soon as the trial ends, and ask your SLP's office whether they have an AAC funding specialist, or use a manufacturer's funding support team, which most major companies offer free of charge.

Are there nonprofit grants to buy an AAC device if insurance denies coverage?

Yes. United Cerebral Palsy affiliates, state vocational rehabilitation programs, and condition-specific foundations like Apraxia Kids sometimes offer grants or equipment. A manufacturer's funding team can often point you toward programs that fit your child's diagnosis and state.

Does trialing an AAC device work differently for a child with autism versus apraxia?

The process itself is the same, but what you watch for changes. For children with autism, pay attention to how they initiate communication and use the device socially across different settings. For children with apraxia, the focus is motor consistency: can they reliably produce the same motor sequence to get the same word? Systems built on motor learning principles, like LAMP, are designed with that in mind. Your SLP should guide what to watch based on your child's specific profile.

Sources

1. ASHA, Augmentative and Alternative Communication Practice Portal: AAC devices range from under $200 to over $8,000 depending on device type and access features
2. ASHA, Augmentative and Alternative Communication Practice Portal: ASHA guidance states that AAC selection should include a trial period with the device as part of the feature-matching process
3. Assistive Technology Act of 2004 (Public Law 108-364), Administration for Community Living: The Assistive Technology Act of 2004 requires each state to operate a statewide AT program including device demonstration and device loan programs
4. AT3 Center, National Assistive Technology Act Technical Assistance and Training Center, state program directory: The AT3 Center maintains a searchable directory of every state assistive technology program and its device loan library
5. U.S. Department of Education, Individuals with Disabilities Education Act (IDEA), Assistive Technology Provisions: Under IDEA 2004, IEP teams must consider assistive technology devices and services for every child with a disability, and devices may be sent home if the IEP team determines the child needs them to receive FAPE
6. Centers for Medicare and Medicaid Services, Medicare Coverage Database, Speech Generating Devices: CMS requires documentation of a severe speech impairment and SLP evaluation including trial results for coverage of speech-generating devices under durable medical equipment
7. Binger, C. & Light, J. (2006). Demographics of preschoolers who require AAC. Language, Speech, and Hearing Services in Schools, 37(3), 200 to 208. ASHA Journals.: Research documents geographic disparities in AAC service delivery, with rural families facing significantly reduced access to specialist providers
8. ASHA, Telepractice Practice Portal: ASHA notes that telepractice services can produce outcomes comparable to in-person services for many populations
9. Millar, D.C., Light, J.C., & Schlosser, R.W. (2006). The impact of AAC on natural speech development. Journal of Speech, Language, and Hearing Research, 49(2), 248 to 264. ASHA Journals.: Systematic review found no evidence that AAC inhibits natural speech development and some evidence that it supports it
10. Tobii Dynavox, AAC devices and software, official site: Tobii Dynavox dedicated AAC devices retail in the $5,800 to $8,500 range; the company offers clinical trial loan programs through SLPs
11. U.S. Department of Education, Individuals with Disabilities Education Act (IDEA), Part C to Part B transition: IDEA governs the transition from Part C early intervention to Part B school-based services and the continuity of AT support through that transition