An AAC app for stroke survivors: what to look for

AAC stands for augmentative and alternative communication: every way a person can communicate besides speech, from pointing and writing to a board of pictures or an app that speaks. After a stroke, many families start searching for one within days, often from a hospital waiting room. This guide is the checklist we wish every family had before they chose.

It is a common need. Every year, more than 795,000 people in the United States have a stroke, according to the CDC, and the NIDCD notes that approximately one third of stroke survivors have aphasia. Speech can also be affected by apraxia or dysarthria, which change how the mouth plans and makes sounds. The speech-language pathologist can explain which of these your person has, and that shapes what kind of tool fits.

Why a stroke changes the checklist

Most communication apps are designed for a person with two steady hands, full energy and good eyesight. A stroke can change all three. The dominant hand may be weak. Reading may take effort, especially late in the day. Fatigue can arrive suddenly. An app that is clever but fiddly will end up in a drawer. So judge every option by one test: can your person use it on a bad afternoon, one-handed, without help?

1. Adult words for an adult life

Many picture boards were built for children. A stroke survivor needs to say things like “I want to be part of this decision,” “Please wait, let me think about this medication,” or “Tell me the real answer.” Look for a phrase library written for adults, organized by real situations, with room to add the person's own words. In ExpressAgain the Phrase Library is sorted by situations such as food, comfort, feelings and medical needs, and Build a message has starters written for how someone in this situation actually feels, including humor and opinions about their own care.

2. One hand, big targets, calm screens

• Large buttons with space between them, so a shaky tap does not say the wrong thing.
• Adjustable text size, high contrast and reduced motion.
• A way to show fewer choices at once on tired days.
• No timers and no scores.

ExpressAgain's accessibility settings cover bigger text, bigger buttons, higher contrast and less motion, and the whole app reflows to match. The 3 at a time switch shows a few choices instead of everything. Lessons, phrases and feed posts can be read aloud, for the days when listening is easier than reading.

3. More than one way to say it

Aphasia varies from hour to hour. A good tool offers several roads: tap a ready phrase, build a sentence from pieces, type, or spell. In ExpressAgain the Communicate page has Speak, Type and Letters, an on-screen alphabet board that speaks what was spelled and can share it as a note to family and to the care team. Handwriting input is not built yet, and the app says so on the screen.

4. A voice that sounds like them

The voice matters more than families expect. Hearing “I love you” in a synthetic stranger's voice is different from hearing it in your own. Look for natural voices with adjustable speed and pitch, and ask whether the app can speak in a personal voice. ExpressAgain can make a cloned voice from a short recording, and uses a clear built-in voice until it is ready, so the person is never without one.

5. Works on what you already own

Dedicated speech devices exist and are right for some people; your speech-language pathologist can advise. For many families, starting on a phone or tablet they already have is the fastest way to a voice. ExpressAgain runs in the web browser on a phone, tablet or computer, with nothing to install, which also means it works on the hospital's tablet and on the kitchen laptop.

6. Emergency and medical words

The moments a person most needs to be understood are often medical: pain, a new symptom, a nurse at 3 a.m. Check that the app can say “I need help now” in one tap, describe pain and where it hurts, and explain hospital words. ExpressAgain has an Emergency page with 911 always one tap away, and Medical Words, a plain-language dictionary with questions to tap and ask the team out loud.

7. Room to practice, never graded

An AAC app does not have to replace speech practice. Many people use both: the app for today's conversations, therapy for tomorrow's words. Look for practice that feels safe. In Practice Out Loud the person hears a phrase, records a try and hears it back, with no grading ever, and exercises the therapists assign appear there as encouragement.

8. The family is part of it

Communication happens with people, so the tool should make it easy for the people around the survivor to be present: sharing photos, sending voice messages, knowing how the day went. And it should be private, with every person invited on purpose. ExpressAgain's family circle is invitation only, and each role sees only what it needs.

Questions to ask the speech-language pathologist

• Which parts of language are hardest right now: finding words, understanding, reading, or making the sounds?
• Should we start with pictures, words, spelling, or a mix?
• How can the app support the exercises you are giving us?
• What should we add to the phrase list for the next few weeks at home?
• Can a family member sit in on part of a session to learn supported conversation?