Comparison

Lexico Articulation 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

Lexico Articulation

Features
Read full description

Learn how to pronounce and practice consonant sounds in the English language with Lexico Articulation. This engaging app has been created by experienced speech pathologists for children and adults to improve the clarity of pronunciation by practicing individual target sounds. Practicing is fun with over 1500 flashcards and a variety of appealing ways to exercise. This flexible learning tool offers: detailed explanations on sound formation to help parents 22 target main sounds with initial, medial or final positions of words as well as target sound blends 50-300 flash cards for each target sound exercises to identify number of syllables and target sound position in words flexibility to work with varying combinations of picture, text and sound option to record and rate the students Lexico Articulation is recommended for: - speech therapy for language impairment, for dysarthria or aphasia therapy - home exercises for students A detailed log is used to track student progress and can be shared by mail. Lexico Articulation includes the L- target sound. All other target sounds can be purchased individually or a complete package with various in-app purchase options.

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

Keywords Understanding Lite4 screens

Verdict

The call

The clearest difference is in-app purchases: Keywords Understanding Lite at none against Lexico Articulation's 10. Keywords Understanding Lite also leads on device support (3 vs 1). Lexico Articulation's advantage is update cadence (every 16 months vs every 68 months) and iOS requirement (9.0 vs 15.0). On price 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. Lexico Articulation sells 10 one-off in-app purchases. Keywords Understanding Lite asks for nothing beyond the download.

UpkeepUpdate frequency

Lexico Articulation ships an update every 16 months, Keywords Understanding Lite every 68 months. The most recent releases landed on September 14, 2026 and August 12, 2026 respectively.

Scorecard4 real differences · 5 level
Lexico Articulation versus Keywords Understanding Lite: the parameters behind the verdict, then further details
ParameterLexico ArticulationKeywords Understanding Lite
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 16 months — betterEvery 68 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPadiPhone, iPad, iPod — better
Requires iOS9.0 — better15.0
Further details — not scored
Size174 MB60 MB
Age rating4+4+
DeveloperPappy GmbHAptus Speech and Language Therapy Limited

In-app purchases

10 purchases

Lexico Articulation

One-time10
  • TH-SOUND$0.99
  • NG-SOUND$1.99
  • CH-SOUND$2.99
Show 7 more
  • F-SOUND$3.99
  • SH-SOUND$3.99
  • K-SOUND$3.99
  • S-SOUND$3.99
  • P-SOUND$3.99
  • R-SOUND$5.99
  • ALL-SOUND$69.99
None

Keywords Understanding Lite

No in-app purchases

Questions

Is Lexico Articulation free?
Lexico Articulation is free to download, with in-app purchases available.
Is Keywords Understanding Lite free?
Keywords Understanding Lite is free to download, with no in-app purchases.
Do Lexico Articulation or Keywords Understanding Lite have ads?
Neither Lexico Articulation nor Keywords Understanding Lite shows ads.
Which is updated more often, Lexico Articulation or Keywords Understanding Lite?
Lexico Articulation ships an update every 16 months, and Keywords Understanding Lite every 68 months. Most recently, Lexico Articulation was updated on September 14, 2026 and Keywords Understanding Lite on August 12, 2026.

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