Aphasia therapy software compared

The difference that matters most: does it listen?

Two of these products evaluate what you say. Parrot Software and Constant Therapy use speech recognition to judge whether a spoken response was correct and respond immediately.

Tactus Therapy and TalkPath do not. Both record audio so you can play it back and assess yourself — Tactus describes this as helping the user “learn to judge your own accuracy.” That is a legitimate design choice with real clinical logic behind it, and for someone working alongside a clinician it may be preferable. But it is a different thing, and if you assumed the software was checking your speech, it is not.

Speech recognition is also not automatically better. It fails in predictable ways for severe aphasia, apraxia of speech, and dysarthria. We have written about where it works and where it does not.

Evidence, and who paid for it

Constant Therapy has the strongest evidence base here, and it is not close on volume. It is the only product of the five with a published randomised controlled trial (Braley et al., Frontiers in Neurology, 2021), alongside several other indexed studies. If published research is your deciding factor, that is the honest answer.

One thing a reader comparing counts should know: most of that research is authored by Swathi Kiran, who is a co-founder and scientific lead of the company. That does not make the work wrong — it is peer reviewed and published in reputable journals — but research conducted by a product company on its own product is weighted differently from research by outsiders, and readers deserve to be told which they are looking at.

Parrot Software has two peer-reviewed studies, both from outside the company. Neither was authored by anyone at Parrot. The Texas Tech authors state in print that they “purchased the software programs used in this study and have no financial agreements with Parrot Software.” Both studies are small — six and twelve participants — and neither had a control group, which is a real limitation and weaker than an RCT.

Tactus Therapy has one peer-reviewed study (Stark & Warburton, 2018, ten participants), which is the source of their “20 minutes a day for four weeks” claim.

For TalkPath Therapy and My Aphasia Coach we found no peer-reviewed studies of the products themselves. That is not evidence they do not work. It means nobody has published a test.

Where each one is the right answer

Constant Therapy

Best if published evidence is your priority, or if you want the software to adjust difficulty automatically. Parrot does not adapt difficulty on its own; a person or a clinician chooses the level.

Tactus Therapy

Best if one specific skill is the problem — naming, reading, apraxia, writing — and you would rather buy an app once than subscribe. Over a year or two this is the cheapest paid option for a narrow need, and the apps work offline. It also has the widest language support: English, Spanish, French, and German.

Lingraphica TalkPath

Best if cost is the deciding factor. It is genuinely free, with more than 13,500 exercises. Nobody should pay for software before trying a free option that might be sufficient.

My Aphasia Coach

Worth a look if a structured daily routine is what is missing. It has a fourteen-day free trial and is free for speech-language pathologists.

Parrot Software

Best if you want spoken responses evaluated across many kinds of task rather than naming alone, want speech, reading, memory, vocabulary, function, and cognition in one subscription rather than several purchases, or need English and Spanish. Ninety-four programs in one subscription is the widest single-purchase range here.

What none of them do

None of these products assesses aphasia, decides what to work on, or replaces a speech-language pathologist. They are all ways to add practice between sessions. Hours spent practising the wrong targets do not help regardless of which product delivers them, and that judgement is clinical. How much practice is enough covers what the research says about dose and frequency.

Common questions

Which aphasia app has the most research behind it?

Constant Therapy. It is the only one of these products with a published randomised controlled trial, and it has several other indexed studies. It is worth knowing that most of that research is authored by a co-founder of the company. Parrot Software has two peer-reviewed studies, both by researchers with no financial relationship to us. Tactus Therapy has one. We found no peer-reviewed studies of TalkPath Therapy or My Aphasia Coach.

Which aphasia apps actually listen to you speak?

Parrot Software and Constant Therapy evaluate spoken responses using speech recognition. Tactus Therapy and Lingraphica TalkPath record audio so that you can play it back and judge your own accuracy, which is a different thing. We could not determine whether My Aphasia Coach uses speech recognition.

What is the cheapest aphasia therapy software?

Lingraphica TalkPath Therapy is free. Among the paid options, Tactus Therapy apps are one-time purchases starting around $29.99 for a single skill, which works out cheapest over time if you only need one or two. Among subscriptions, Parrot Software is $24.95 per month and Constant Therapy is $29.99 per month, both checked in August 2026.

Is any of this a substitute for seeing a speech-language pathologist?

No. Every product here is practice between sessions, not assessment or treatment planning. Deciding what to work on is a clinical judgement, and choosing the wrong targets makes practice time worthless no matter which software delivers it.

Which one should I choose?

If you want the strongest published evidence, Constant Therapy. If you want one specific skill and no subscription, Tactus Therapy. If cost is the deciding factor, TalkPath Therapy is free. If you want spoken responses evaluated across many kinds of task in one subscription, or you need Spanish, Parrot Software is a reasonable choice. Most people should try more than one, since all of them offer a free trial or a free tier.