Comparison

Category Therapy Lite vs Keywords Understanding Lite

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

Head to head
About

Category Therapy Lite

This app helps individuals improve their mental organization and category-based thinking skills. It offers evidence-based exercises designed by experts to aid in word-finding and sorting, beneficial for those with stroke, brain injury, or autism.

Highlights
  • Evidence-based exercises
  • Improve word-finding
  • Improve sorting skills
  • 4 engaging activities
  • Unlimited practice
  • Clear photos and simple interface
  • Customizable settings
Read full description

Improve mental organization skills. Practice categories in a versatile speech therapy app. When you struggle with categories due to stroke, brain injury, or autism, simple tasks can be impossible. But there’s a way to heal the broken networks of meaning. TRY CATEGORY THERAPY, an app designed for both speech therapists and home users to help restructure the brain and let the ideas flow. This free Lite version gives you a sample of what you’ll get in the full version. - Take control with evidence-based exercises designed by experts - Improve word-finding and sorting skills with 4 engaging activities and unlimited practice - Get an app that works in both home and clinical settings - Interact with clear photos and a simple interface that's easy for everyone to use - Adjust settings to target your goals and suit your needs - Use reports and customization to seamlessly fit the app into your therapy program When you lose the ability to group items and identify what they have in common, it gets in the way of your ability to understand, learn, and communicate. But with the right kind of practice, it’s possible to strengthen the connections between words and concepts and navigate your world more easily. “It will be a LONG time before you run out of content to use with one patient, and the app’s fantastic settings options will allow you to use it with a variety of individuals, regardless of cognitive abilities.” - Aubrey Klingensmith, MS, CCC-SLP, Speechie Apps GET THE RIGHT ACTIVITY - FOR EVERY BRAIN. No two people are the same. With 4 activities ranging from simple to complex, there's something in Category Therapy to match your needs. Work through them gradually or focus on the activity that best suits your needs. 1) FIND: Start with the basics. You'll hear and see a photo of a category (let's say "Fruit"). Tap the item that matches (for example, a banana). 2) CLASSIFY: Switch it up. Now you start with an item and choose the category that matches. This tests your ability to apply categories to what you see. 3) ADD ONE: Train yourself to recognize common features of items – to categorize them – and then choose one item that fits the category you’ve identified. 4) EXCLUDE: Challenge yourself. By choosing an item that doesn't belong, you learn how to independently identify categories. As things get harder, you can always tap Hint for some help. ALL DONE? Share your progress. The app makes it easy to quickly view, share, or e-mail detailed reports to a therapist or loved one. GET EVERY FEATURE YOU NEED IN ONE EASY APP. • 70 categories and nearly 700 words in the full version • 3 difficulty levels ranging from simple objects to more abstract concepts • Great for aphasia, brain injury, autism, and other cognitive & language impairments • Switch to Pictures Only to practice naming or Words Only to practice reading • Customize the number of trials, choices, and more – the full version gives you total control • Designed with adults in mind but easy enough for children to use • No subscriptions, no monthly bills, no Wi-Fi needed THERE’S HOPE. With Category Therapy in your corner, you can build stronger connections between words – and learn to speak and think more easily. What’s the difference between the Lite and full versions? - Full has nearly 700 words in 70 categories; Lite has 21 target words and 15 categories. - Full lets you control all the settings; Lite limits the number of choices and number of trials - Full has enough variety to practice and improve; Lite gives you a taste to know if this app is right for you – it’s not meant to be used for long as the sample exercises are easily mastered. Looking for something different in a speech therapy app? We offer a wide range to choose from. Find the right one for you at https://tactustherapy.com/find

About

Keywords Understanding Lite

This app offers a sample of speech and language therapy exercises focused on sentence comprehension. It helps users practice following directions, understanding basic concepts, and improving auditory and reading comprehension skills through interactive activities.

Highlights
  • Listening comprehension exercises
  • Reading comprehension exercises
  • Following directions (one/two-step, temporal, sequential)
  • Basic concepts (size, color)
  • Vocabulary understanding
  • Sample of full app features
Features
Read full description

Keywords Understanding LITE is a free version of Keyword Understanding. It gives you a sample of the content you would get in the full version. It allows you to see how the full version works and try it out for free. Keyword Understanding (the full app version) is a professional speech and language therapy app that works on sentence-level reading and listening comprehension. It also targets the understanding of vocabulary, basic concepts and the ability to follow directions of increasing keyword length. WHO IS KEYWORD UNDERSTANDING FOR? - Children with reduced attention and auditory processing difficulties - Children with language delay or disorder - Children with autism and language comprehension difficulties - Adults with aphasia and reading or spoken language comprehension difficulties after a stroke or traumatic brain injury - Adults with cognitive-communication difficulties due to stroke or brain injury WHAT LANGUAGE AREAS DOES KEYWORD UNDERSTANDING TARGET? FOLLOWING DIRECTIONS: Following directions is important in our everyday lives. In order to understand and follow directions, one needs a strong knowledge of basic concepts, vocabulary and the ability to process and retain spoken or written information in memory. BASIC CONCEPTS, ONE AND TWO STEP DIRECTIONS: Keyword Understanding works on the basic concepts of size and color as well as one and two-step directions of increasing length and difficulty e.g  - “Touch the red balloon” - “Touch the small green umbrella” - “Touch the yellow chair and the blue candle” - “Touch the big pink cupcake and the small green glasses”. TEMPORAL DIRECTIONS (BEFORE/AFTER): Keyword Understanding includes Temporal Directions tasks that target the child or adult’s ability to follow directions that include the concepts 'Before/After' in a variety of positions in the sentence. e.g  - “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” SEQUENTIAL DIRECTIONS (FIRST…THEN): The app also includes Sequential Directions that target the child or adult’s ability to follow directions that include the concepts 'First ... Then' in the sentence. e.g  - “First touch the ladder, then touch the bike”. FEATURES OF KEYWORDS UNDERSTANDING LITE This FREE version, Keywords Understanding LITE allows you to sample each activity in the full version but it only includes 6 objects. The FULL version includes many more allowing for much more variety in each activity and many more trials. The full version also allows you to select and deselect vocabulary items in the Word List. 3 modes: - Listening Comprehension (Audio Only): Match the spoken direction to the pictures - Reading Comprehension (Text Only): Match the written direction to the pictures - Listening and Reading Comprehension (Audio and Text): Match the spoken and written directions to the pictures - Bright, colorful, real-life photos of common objects - 6 objects in five different colors and sizes. The full version has a large variety allowing for thousands of possible following directions tasks - 3 trials in each activity. The full version allows for up to 50 trials per session. - A comprehension check activity to find out where comprehension breakdown occurs - Audio feedback for correct answers only, incorrect answers only or both - Graded tasks of increasing difficulty - User profiles and result history - Automatic tracking of scores - Optional results summary via email - iOS voices (automatically selected based on your region). Download an enhanced iOS voice for best quality. All Aptus Speech Therapy apps participate in the 50% off Volume Purchase Program, so you can buy in bulk at a discounted price. Are you looking for a different kind of speech therapy app? Check out our full range of speech and language therapy apps for adults and children on the AppStore or on our website.

Screenshots

Category Therapy Lite4 screens
Keywords Understanding Lite4 screens

Verdict

The call

The clearest difference is update cadence: Category Therapy Lite at every 9 months against Keywords Understanding Lite's every 68 months. Category Therapy Lite also leads on ratings volume (306 vs 3) and iOS requirement (9.0 vs 15.0). Keywords Understanding Lite's advantage is rating (5.0 vs 4.8). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Keywords Understanding Lite holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Category Therapy Lite has 306 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Category Therapy Lite ships an update every 9 months, Keywords Understanding Lite every 68 months. The most recent releases landed on October 1, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 6 level
Category Therapy Lite versus Keywords Understanding Lite: the parameters behind the verdict, then further details
ParameterCategory Therapy LiteKeywords Understanding Lite
PriceFreeFree
Rating4.8 (306 ratings)5.0 (3 ratings) — better
Positive reviews90.0% of reviews—
Number of ratings306 — better3
Update frequencyEvery 9 months — betterEvery 68 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size17 MB60 MB
Age rating4+4+
DeveloperTactus Therapy Solutions Ltd.Aptus Speech and Language Therapy Limited

Customer experience

Category Therapy Lite

All ratings306 ratings
Positive95.1%
Neutral2.3%
Negative2.6%
Written reviews20 reviews
Positive90.0%
Neutral5.0%
Negative5.0%

Keywords Understanding Lite

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Category Therapy Lite

Requested features

3 requests
  • Ability to select the number of questions
  • Boxes around objects in 'classify' mode
  • Cueing aspect found in other apps

Keywords Understanding Lite

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Category Therapy Lite

No in-app purchases

None

Keywords Understanding Lite

No in-app purchases

Questions

Is Category Therapy Lite free?
Category Therapy Lite is free to download, with no in-app purchases.
Is Keywords Understanding Lite free?
Keywords Understanding Lite is free to download, with no in-app purchases.
Which has better reviews, Category Therapy Lite or Keywords Understanding Lite?
Keywords Understanding Lite is rated higher. Category Therapy Lite averages 4.8 out of 5 from 306 ratings, while Keywords Understanding Lite averages 5.0 from 3 ratings.
Do Category Therapy Lite or Keywords Understanding Lite have ads?
Neither Category Therapy Lite nor Keywords Understanding Lite shows ads.
Which is updated more often, Category Therapy Lite or Keywords Understanding Lite?
Category Therapy Lite ships an update every 9 months, and Keywords Understanding Lite every 68 months. Most recently, Category Therapy Lite was updated on October 1, 2026 and Keywords Understanding Lite on September 17, 2026.

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