Comparison

Comprehension Aphasia vs Keyword Understanding

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

Head to head
About

Comprehension Aphasia

This app helps improve auditory processing and receptive language skills for adults and children. It offers over 1,700 audio instructions across various activities, including yes-no questions and directions, with adjustable difficulty levels and optional background noise to enhance focus.

Highlights
  • Auditory processing improvement
  • Receptive language development
  • 1,700+ audio instructions
  • Adjustable difficulty levels
  • Background noise simulation
  • User progress tracking
  • Multi-user support
Features
Read full description

****I like that this app includes so many different activity choices and different levels. One thing that this app includes that most do not is background noise. This is great for working on a student's ability to focus on a task and ignore distractions. (Simply Speech)**** ****Comprehension Aphasia is a great app for anyone working on improving their auditory processing/receptive language abilities. It's a comprehensive app that allows you to work on so much, while increasing cognitive and linguistic complexity. (Carrie's Speech Corner)**** The Comprehension Aphasia app was created by a certified speech and language pathologist for adults and children, and it focuses on auditory comprehension of increasingly longer and complex yes-no- questions and directions with the ability to turn on background noise. The Comprehension Aphasia app can be used by individuals who exhibit: -Aphasia, secondary to brain injury such as stroke -Cognitive deficits such as decreased attention - Central Auditory Processing Disorder (CAPD) -Receptive language disorders and Autism Comprehension Aphasia includes more than 1,700 pre-recorded audio instructions in the following activities: -Yes-no questions with six levels of difficulty -Basic Directions with one element with 12 levels of difficulty - Basic Directions with two elements with 12 levels of difficulty - Temporal Directions with 18 levels of difficulty - Conditional Directions with nine levels of difficulty The Comprehension Aphasia app is easy to navigate and allows users to use several tools to perform the following tasks: -Enter multiple users -Change settings -Select auto-scoring -Select alternate counts for multiple users -Enable or disable feedback sounds -Choose different feedback sounds -Enable background noise -Choose different types of noise -Track correct and incorrect responses -E-mail results at the end of the game

About

Keyword Understanding

This app helps users of all ages improve their ability to understand spoken and written directions. It features various activities targeting vocabulary, basic concepts, and sequential instructions, making it beneficial for individuals with listening comprehension or processing difficulties.

Highlights
  • Follow spoken and written directions
  • Improve vocabulary and basic concepts
  • Target auditory attention and working memory
  • Activities for one and two-step directions
  • Temporal and sequential direction practice
  • Comprehension check for vocabulary and concepts
Features
Read full description

“This app is great for children with processing difficulties which need to improve their ability to follow directions with a variety of embedded concepts.” ~ Smart Speech Therapy blog “Every child I have used it with has been very engaged by the lovely, brightly-colored pictures, and has quite happily kept on listening and following the instructions.” ~ Speech Blog UK “It can be used for informal assessments, language therapy and home practice. It can also be used to target auditory attention and working memory for cognitive-communication goals.” ~ Speaking of Apps blog Keyword Understanding is a professional speech and language therapy app that targets the ability to understand sentences and follow spoken and written directions of increasing difficulty. Children and adults are asked to follow directions in their everyday lives. In order to follow directions, the child or adult requires a strong knowledge of vocabulary, basic concepts and the ability to process and retain the information they have listened to or read. WHO IS KEYWORD UNDERSTANDING FOR? - Parents - Teachers - Speech language pathologists / Speech and language therapists - Children with reduced attention and listening comprehension or auditory processing difficulties  - Children with receptive language delay, developmental language delay or autism - Adults with mild to moderate aphasia due to stroke or traumatic brain injury - Adults with cognitive-communication difficulties due to stroke or traumatic brain injury  WHAT COMPREHENSION ACTIVITIES ARE INCLUDED IN KEYWORD UNDERSTANDING? Comprehension Check: This activity helps you identify where comprehension breaks down. It checks the understanding of individual vocabulary items, and the basic concepts of size and color. Object, Size & Color: This activity works on the understanding of the basic concepts of size and color as well as the ability to follow one and two-step directions of increasing difficulty. 2 keyword level: Touch the green car 3 keyword level: Touch the big red mug 4 keyword level: Touch the green vase and the yellow cushion 6 keyword level: Touch the small pink gloves and the big blue comb Before & After: This activity works on the ability to understand and follow temporal directions (directions which include the concepts before/after in a variety of positions in the sentence). “Before you touch the t-shirt, touch the phone” “After you touch the lamp, touch the vase”, “Touch the flower before you touch the box”, “Touch the sock after you touch the bucket”. First & Then: This activity works on the ability to understand and follow sequential directions (directions which include the concepts first/then in the sentence). “First touch the ladder, then touch the bike”.  WHAT LANGUAGE & COGNITIVE SKILLS DOES KEYWORD UNDERSTANDING TARGET? - Vocabulary - Listening / Auditory Comprehension - Reading Comprehension - Working Memory - Attention to Detail - Language Processing - Basic Concepts / Adjectives (size, color) - Temporal Directions (Before/After) - Sequential Directions (First… Then)  FEATURES 3 modes: - Listening/ Auditory Only: Match the spoken direction to the picture(s) - Reading Only: Match the written direction to the picture(s) - Listening and Reading: Match the spoken and written directions to the picture(s) Keyword Understanding lets you: - Choose from a variety of vocabulary items in different sizes and five different colors allowing for thousands of following directions tasks - Follow directions of increasing difficulty and length - Add individual user profiles - Automatically track correct and incorrect responses of each user - Email a detailed result summary after a session or at a later date - Receive audio feedback for correct answers only, incorrect answers only or both All Aptus Speech Therapy apps participate in the 50% off Volume Purchase Program.  Visit our website for more details about our other speech and language therapy apps.

Screenshots

Keyword Understanding4 screens

Verdict

The call

The clearest difference is rating: Keyword Understanding at 5.0 against Comprehension Aphasia's 2.0. Keyword Understanding also leads on price ($17.99 vs $19.99) and device support (3 vs 1). Comprehension Aphasia's advantage is review sentiment (33% vs 25%). On update cadence, ads, in-app purchases and monetization model 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

Comprehension Aphasia costs $19.99 and Keyword Understanding $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Keyword Understanding holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews complicate that: 33% of Comprehension Aphasia's written reviews are positive against 25% of Keyword Understanding's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 10 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
Comprehension Aphasia versus Keyword Understanding: the parameters behind the verdict, then further details
ParameterComprehension AphasiaKeyword Understanding
Price$19.99$17.99 — better
Rating2.0 (1 ratings)5.0 (3 ratings) — better
Positive reviews33.3% of reviews — better25.0% of reviews
Number of ratings13 — better
Update frequencyEvery 10 monthsEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.615.0 — better
Further details — not scored
Size217 MB64 MB
Age rating4+4+
DeveloperVirtual Speech Center Inc.Aptus Speech and Language Therapy Limited

Customer experience

Comprehension Aphasia

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

Keyword Understanding

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Comprehension Aphasia

No in-app purchases

None

Keyword Understanding

No in-app purchases

Questions

Is Comprehension Aphasia free?
Comprehension Aphasia costs $19.99, with no in-app purchases.
Is Keyword Understanding free?
Keyword Understanding costs $17.99, with no in-app purchases.
Which has better reviews, Comprehension Aphasia or Keyword Understanding?
Keyword Understanding is rated higher. Comprehension Aphasia averages 2.0 out of 5 from 1 ratings, while Keyword Understanding averages 5.0 from 3 ratings.
Do Comprehension Aphasia or Keyword Understanding have ads?
Neither Comprehension Aphasia nor Keyword Understanding shows ads.
Which is updated more often, Comprehension Aphasia or Keyword Understanding?
Comprehension Aphasia ships an update every 10 months, and Keyword Understanding every 10 months. Most recently, Comprehension Aphasia was updated on November 1, 2026 and Keyword Understanding on October 29, 2026.

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