Comparison

Inference Ace vs Reading Skills 6B

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

Head to head
About

Inference Ace

This app helps children in grades 2-5 improve their reading comprehension by teaching inference skills step-by-step. It uses a game-like environment with over 450 examples and a reward center to keep kids engaged. Detailed reporting is available for up to 10 students.

Highlights
  • Step-by-step inference skill building
  • Game-like environment with reward center
  • Over 450 examples designed by teachers
  • Detailed reporting for multiple students
  • Incremental learning with unlocked levels
  • Guided learning for reduced frustration
Features
Read full description

** Winner of prestigious Mom's Choice Award! Featured on Appolicious.com, iHeartThisApp.com ** Inference Ace helps kids who have trouble with reading comprehension. The app builds inference skills step-by-step until mastery in a fun, game-like environment. ***** 5 Stars - Nice app for practicing inference. Tons of examples. ***** 5 Stars - My son struggles with comprehension and doesn't like reading long passages. This app teaches a high level of skill in a format he enjoys. Thanks! Inference Ace is targeted to children in Grades 2-5 who can read the words (decode), but don't understand what they read. With over 450 examples, a fun and engaging reward center to increase motivation, and content designed by professional teachers and researchers, this app is bound to capture the attention of your kids. Best of all, there is detailed reporting for up to 10 students to meet the needs of teachers, therapists and parents. Key Features: - Incremental learning. New levels are unlocked only when your child is ready. - Guided learning for less frustration. Your child will always be guided to the correct answer. - Fun and engaging Reward Center to increase motivation. - Contains over 450 examples, with content designed by professional teachers and researchers. - Inferences are taught from multiple perspectives: what inferences are possible, which are not possible, multiple inferences per sentence, etc. - Our own Smart Sentence technology is used to infinitely vary the examples to prevent learning by rote. - Advanced levels include timers to ensure fluency. Research shows fluency in the foundation skills is critical to reading comprehension. 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! The free version of this app has 4 free levels for a single player. Remaining levels are unlocked by a single in-app purchase. Additional players can be purchased separately through an in-app purchase. Check out 'Inference Ace School Edition' if you prefer no in-app purchases. 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. Inferencing is a key component of reading comprehension. If you can't infer fluently, you can't understand the story. Help your child now by getting started with our Inference Ace app. While you're at it, check out our other apps that target WH questions, identifying inference clues and identifying the main idea of a sentence or paragraph. 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. ** Note: Inference Ace and Inference Clues intentionally use similar data sets. However, different skills are targeted. Also, when working through this app, you will encounter different variants of the same examples many times as we teach our players to derive multiple inferences from a single sentence -- just like expert readers do. This is an intentional feature, not a bug :-)

About

Reading Skills 6B

Features
Read full description

Why is the sky blue? What are genes and what do the do? How does a magnet work? These questions and more are answer by reading articles from this app. Reading Skills 6B is a collection of nonfiction passages with interactive learning activities, written and developed by Fred Ventura, Ph.D. This app is a part of the Reading Skills Series published by Ventura Educational Systems. This app presents twelve high-interest passages with stories and information about math topics at the sixth-eighth grade reading level. Each passage is followed by three activities to help readers strengthen their reading skills. Reading nonfiction is an essential skill for literacy. Reading Skills 6B Science provides fun, exciting information about interesting questions. For example, what are genes, why is the ocean salty, and what is the structure of the earth.

Screenshots

Inference Ace4 screens

Verdict

The call

The clearest difference is price: Inference Ace at Free against Reading Skills 6B's $1.99. Inference Ace also leads on update cadence (every 7 months vs every 38 months) and device support (3 vs 1). Reading Skills 6B's advantage is in-app purchases (none vs 3). On ads and iOS requirement 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

Inference Ace is free to download; Reading Skills 6B costs $1.99 up front. Inference Ace sells 3 one-off in-app purchases. Reading Skills 6B asks for nothing beyond the download.

UpkeepUpdate frequency

Inference Ace ships an update every 7 months, Reading Skills 6B every 38 months. The most recent releases landed on October 29, 2026 and March 14, 2026 respectively.

Scorecard4 real differences · 6 level
Inference Ace versus Reading Skills 6B: the parameters behind the verdict, then further details
ParameterInference AceReading Skills 6B
PriceFree — better$1.99
Rating3.6 (21 ratings) — better—
Positive reviews88.6% of reviews—
Number of ratings21 — better—
Update frequencyEvery 7 months — betterEvery 38 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.212.0 — better
Further details — not scored
Size22 MB26 MB
Age rating4+4+
DeveloperJanine TooleVentura Educational Systems

In-app purchases

3 purchases

Inference Ace

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

Reading Skills 6B

No in-app purchases

Questions

Is Inference Ace free?
Inference Ace is free to download, with in-app purchases available.
Is Reading Skills 6B free?
Reading Skills 6B costs $1.99, with no in-app purchases.
Do Inference Ace or Reading Skills 6B have ads?
Neither Inference Ace nor Reading Skills 6B shows ads.
Which is updated more often, Inference Ace or Reading Skills 6B?
Inference Ace ships an update every 7 months, and Reading Skills 6B every 38 months. Most recently, Inference Ace was updated on October 29, 2026 and Reading Skills 6B on March 14, 2026.

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