Comparison

Constant Therapy vs CogEval

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Constant Therapy

This app provides science-based cognitive, language, and speech therapy exercises for individuals recovering from neurological conditions like stroke, TBI, and aphasia. It offers personalized, AI-guided activities to improve memory, communication, attention, and more, accessible anytime and anywhere.

Highlights
  • Customized AI-guided therapy exercises
  • Speech and cognitive skill-building
  • Progress monitoring and reports
  • Supplement in-clinic therapy
  • Large library of evidence-based activities
  • Live customer support
Features
Read full description

Constant Therapy is an award-winning, science-based exercise app for cognitive, language, and speech practice — built for people living with aphasia, apraxia, dementia, stroke, traumatic brain injury (TBI), or other neurological conditions. Join a community of 800,000+ users who have completed 350 million+ science-based practice exercises. Get unlimited AI-guided exercises you can do anytime, anywhere — a helpful way to get more exercise practice between speech therapy, occupational therapy or neurology appointments. AVAILABLE IN English dialects (US, UK, Australia, India) & US Spanish. Constant Therapy is built for people who want to: – Practice finding words, speaking and improve communication despite aphasia – Work on everyday math and problem-solving skills affected after a stroke or brain injury – Strengthen memory with structured cognitive exercises for dementia or memory loss – Regain confidence in doing everyday activities like reading menus, maps, and understanding phone messages – Improve attention and executive functioning with daily practice after a stroke – Get more aphasia, apraxia, or cognitive exercise practice between speech therapy or occupational therapy appointments – Support a loved one who has run out of speech-language therapy or occupational therapy but needs more day-to-day practice FEATURES & BENEFITS • For people with aphasia, apraxia, dementia, stroke, TBI, or other neurological conditions: choose your speech, language and cognitive goals, and get customized, ever-adjusting exercises based on your needs • Practice speaking, memory, attention, reading, writing, language, math, comprehension, problem solving, visual processing, auditory memory, and other functional skills • Use independently at home, alongside in-clinic speech-language pathology or occupational therapy, or add your clinician to follow your progress • Ideal for people who want daily home exercises to supplement aphasia therapy, dementia therapy, speech-language therapy, or cognitive therapy from a licensed professional • Friendly, live customer support trained to work with people who have cognitive and communication challenges • Track progress with clear, easy-to-understand performance summaries • Access the world’s most comprehensive evidence-based exercise library: 1 million+ exercises across 90+ practice areas covering speech, language and cognitive skills • Try free for 14 days before you subscribe THE SCIENCE BEHIND CONSTANT THERAPY Constant Therapy’s exercise library is grounded in 70+ published research studies; and 19 clinical studies have examined its use by people with aphasia, apraxia, dementia, stroke and traumatic brain injury. Studies show that users enabled with Constant Therapy get 5x more speech, language and cognitive exercise practice; and show better outcomes. See the research at constanttherapyhealth.com/science/ Constant Therapy was built by clinicians and scientists at Boston University specifically around the practice needs of people with aphasia, apraxia, dementia, stroke, brain injury, and other neurological conditions. It tracks progress across a wide range of functional skills that are important to help people live independently and age at home. A multiple award-winner recognized by Hearst Health, Time Magazine, the American Stroke Association, and AARP, Constant Therapy is used and recommended by tens of thousands of speech-language pathologists, occupational therapists and neurologists. SIGN UP FOR A FREE 14-DAY TRIAL CONTACT US support@constanttherapy.com constanttherapy.com TERMS constanttherapy.com/privacy/ constanttherapy.com/eula/ Constant Therapy is a tool to help practice cognitive exercises. It does not provide medical advice, diagnoses, or rehabilitation services, and does not guarantee improvements in brain function. It is not a substitute for professional medical or clinical care. Always consult your licensed healthcare provider before making any health-related decisions.

About

CogEval

This iPad-based assessment tool evaluates cognitive function in multiple sclerosis patients through a two-minute processing speed test. It measures attention, psychomotor speed, visual processing, and working memory, validated against the Symbol Digit Modalities Test. Results are available for healthcare professionals to review.

Highlights
  • Cognitive function evaluation for MS patients
  • Two-minute processing speed test
  • Measures attention, psychomotor speed, visual processing, working memory
  • Validated against SDMT
  • Summary normed data for healthcare professionals
  • Resets after each use, no data storage
Read full description

CogEval is an iPad-based assessment designed to evaluate cognitive function in patients with multiple sclerosis (MS).  It provides a two-minute Processing Speed Test (PST) that evaluates cognitive function using elements of attention, psychomotor speed, visual processing and working memory.  CogEval is based on, and validated against, the Symbol Digit Modalities Test (SDMT).  During the two-minute assessment, the patient pairs abstract symbols with numbers, using a key as a guide. Upon completion, the summary, normed data is available for review by healthcare professionals. CogEval is intended for use in the healthcare setting and is available only to healthcare providers with responsibility for the management of people with MS. CogEval is reset after each use; the patient information and test results are not stored within the App. CogEval is supported on iPads 5th generation of later with a screen size of 9.7" (24.6 cm) or greater on iOS 13 or greater. iPad minis are not supported.

Screenshots

Constant Therapy4 screens

Verdict

The call

The clearest difference is rating: CogEval at 5.0 against Constant Therapy's 4.5. CogEval also leads on in-app purchases (none vs 10). Constant Therapy's advantage is ratings volume (4.2K vs 2) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Constant Therapy sells 10 in-app purchases, starting at $19.99 per month. CogEval asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CogEval holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Constant Therapy has 4.2K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Constant Therapy ships an update every 2 months, CogEval every 3 months. The most recent releases landed on October 29, 2026 and September 29, 2026 respectively.

Scorecard6 real differences · 4 level
Constant Therapy versus CogEval: the parameters behind the verdict, then further details
ParameterConstant TherapyCogEval
PriceFreeFree
Rating4.5 (4.2K ratings)5.0 (2 ratings) — better
Positive reviews77.0% of reviews—
Number of ratings4.2K — better2
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS9.3 — better17.0
Further details — not scored
Size90 MB44 MB
Age rating4+17+
DeveloperConstant Therapy, Inc.Biogen Inc.

Customer experience

Constant Therapy

All ratings4,040 ratings
Positive87.5%
Neutral7.4%
Negative5.1%
Written reviews113 reviews
Positive77.0%
Neutral8.0%
Negative15.0%

CogEval

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Constant Therapy

Reported bugs

3 issues
  • Inconsistent voice recognition accuracy
  • Settings not remembered between sessions
  • Pricing information not easily accessible

Requested features

4 requests
  • More advanced and customizable exercises
  • Ability to bypass irrelevant questions
  • Better user progress tracking and reporting
  • Multilingual support

CogEval

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Constant Therapy

Subscriptions10
  • Auto-renewing Subscription$19.991 Month
  • Auto-renewing Subscription$24.991 Month
  • Auto-renewing Subscription14 Days trial$24.991 Month
Show 7 more
  • Auto-renewing Subscription$29.991 Month
  • Auto-renewing Subscription14 Days trial$29.991 Month
  • Auto-renewing Subscription$199.991 Year
  • Auto-renewing Subscription$249.991 Year
  • Auto-renewing Subscription14 Days trial$249.991 Year
  • Auto-renewing Subscription$299.991 Year
  • Auto-renewing Subscription14 Days trial$349.991 Year
None

CogEval

No in-app purchases

Questions

Is Constant Therapy free?
Constant Therapy is free to download, with in-app purchases available.
Is CogEval free?
CogEval is free to download, with no in-app purchases.
Which has better reviews, Constant Therapy or CogEval?
CogEval is rated higher. Constant Therapy averages 4.5 out of 5 from 4.2K ratings, while CogEval averages 5.0 from 2 ratings.
Do Constant Therapy or CogEval have ads?
Neither Constant Therapy nor CogEval shows ads.
Which is updated more often, Constant Therapy or CogEval?
Constant Therapy ships an update every 2 months, and CogEval every 3 months. Most recently, Constant Therapy was updated on October 29, 2026 and CogEval on September 29, 2026.

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