Comparison

Inference Clues 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

Inference Clues

This app helps children develop reading comprehension by teaching them to identify clues and make inferences. It offers a step-by-step, game-like learning experience with a reward system to keep young learners motivated. It's suitable for independent use or with a therapist.

Highlights
  • Builds inference skills step-by-step
  • Identifies clue words for inferences
  • Incremental learning with unlocked levels
  • Guided learning for correct answers
  • Reward Center for motivation
  • Detailed reporting for up to 10 students
Features
Read full description

** Featured on FunEducationalApps.com & theAppyLadies.com ** Inference Clues helps build strong reading comprehension skills in a fun, game-like environment. As well as generating inferences, players identify the clue words that lead to an inference -- a vital comprehension skill and part of the Common Core standards. ***** 5 Stars! This is another great app from Happy Frog. I really like how your apps target a specific skill. ***** 5 Stars Just what my son needed. Thanks for your great apps. We are working our way through all of them! Inference Ace 2 is targeted to children in Grades 2-5 who can read the words (decode), but who need help with understanding what they read. Key Features: - Builds inference skills step-by-step until mastery. - Incremental learning. New levels are unlocked only when your child is ready. - Can be used independently (just hand it over, your child will know what to do) or with a therapist for reading intervention. - Guided learning for less frustration. Your child will always arrive at the correct answer. - Fun and engaging Reward Center to increase motivation. - Advanced levels include timers to ensure fluency. Research shows fluency in the foundation skills is critical to reading comprehension. - Detailed reporting for up to 10 students to meet the needs of teachers, therapists and parents. Inference Clues can be used at the same time as Inference Ace (our other inferencing app), or it can be used after Inference Ace has been completed. You can try this app by downloading the free version. The free version has 4 free levels for one player. You can purchase levels and players separately through in-app purchases. If you prefer no in-app purchases, please see the 'School Edition' of this app. We are a member of the 'Moms with Apps program. We collect NO private information in our app, and our apps do not allow unrestricted web access. Our apps are designed for and tested by typical and special needs children. Testers include children with Autism and other special needs. Our apps work for them! We take customer service very seriously! If you ever have a problem or find that we've missed something, contact us at our website and we will do our best to fix the problem.

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

Inference Clues4 screens
Keywords Understanding Lite4 screens

Verdict

The call

The clearest difference is rating: Keywords Understanding Lite at 5.0 against Inference Clues's 3.5. Keywords Understanding Lite also leads on in-app purchases (none vs 3). Inference Clues's advantage is update cadence (every 8 months vs every 68 months) and ratings volume (13 vs 3). On price, ads and device support 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. Inference Clues sells 3 one-off in-app purchases. Keywords Understanding Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Keywords Understanding Lite holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 13 and 3 respectively.

UpkeepUpdate frequency

Inference Clues ships an update every 8 months, Keywords Understanding Lite every 68 months. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

Scorecard6 real differences · 4 level
Inference Clues versus Keywords Understanding Lite: the parameters behind the verdict, then further details
ParameterInference CluesKeywords Understanding Lite
PriceFreeFree
Rating3.5 (13 ratings)5.0 (3 ratings) — better
Positive reviews80.0% of reviews—
Number of ratings13 — better3
Update frequencyEvery 8 months — betterEvery 68 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better15.0
Further details — not scored
Size24 MB60 MB
Age rating4+4+
DeveloperJanine TooleAptus Speech and Language Therapy Limited

Customer experience

Inference Clues

All ratings13 ratings
Positive61.5%
Neutral7.7%
Negative30.8%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Keywords Understanding Lite

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

In-app purchases

3 purchases

Inference Clues

One-time3
  • Update to 2 Players$1.99
  • Unlock Levels: Inference Ace 2$2.99
  • Upgrade to 10 Players$2.99
None

Keywords Understanding Lite

No in-app purchases

Questions

Is Inference Clues free?
Inference Clues 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.
Which has better reviews, Inference Clues or Keywords Understanding Lite?
Keywords Understanding Lite is rated higher. Inference Clues averages 3.5 out of 5 from 13 ratings, while Keywords Understanding Lite averages 5.0 from 3 ratings.
Do Inference Clues or Keywords Understanding Lite have ads?
Neither Inference Clues nor Keywords Understanding Lite shows ads.
Which is updated more often, Inference Clues or Keywords Understanding Lite?
Inference Clues ships an update every 8 months, and Keywords Understanding Lite every 68 months. Most recently, Inference Clues was updated on October 16, 2026 and Keywords Understanding Lite on October 8, 2026.

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