Comparison

Rounding vs Inference Ace

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

Head to head
About

Rounding

Practice rounding numbers with whole numbers and decimals. Adjust difficulty and place values in settings to master the game. This app makes learning math fun and engaging.

Highlights
  • Rounding whole numbers and decimals
  • Multiple place values
  • Customizable settings
  • Skill mastery focus
  • Engaging gameplay
Features
Read full description

Rounding- is a great way to test your rounding skills and have fun at the same time. Select the number of problems and other options in the "Settings" screen. Play until you master the game. 1) Rounding whole numbers and decimals 2) More place values If you like this app, please consider giving it a rating. Your support will help keep the updates coming! Thank you for your support!

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 :-)

Screenshots

Rounding4 screens
Inference Ace4 screens

Verdict

The call

The clearest difference is ads: Inference Ace at none against Rounding's shown. Inference Ace also leads on review sentiment (89% vs 64%) and iOS requirement (12.2 vs 15.0). Rounding's advantage is rating (4.0 vs 3.5) and ratings volume (80 vs 22). On price, update cadence, 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. Rounding sells 1 one-off in-app purchase and Inference Ace sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Rounding holds the better App Store score, 4.0 against 3.5. Both are backed by a comparable volume of ratings — 80 and 22 respectively. Written reviews complicate that: 64% of Rounding's written reviews are positive against 89% of Inference Ace's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Rounding ships an update every 12 months, Inference Ace every 7 months. Both last shipped on November 6, 2026.

Scorecard5 real differences · 5 level
Rounding versus Inference Ace: the parameters behind the verdict, then further details
ParameterRoundingInference Ace
PriceFreeFree
Rating4.0 (80 ratings) — better3.5 (22 ratings)
Positive reviews64.3% of reviews88.6% of reviews — better
Number of ratings80 — better22
Update frequencyEvery 12 monthsEvery 7 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.2 — better
Further details — not scored
Size14 MB22 MB
Age rating4+4+
DeveloperHorizon Business, Inc.Janine Toole

Customer experience

Rounding

All ratings79 ratings
Positive72.2%
Neutral7.6%
Negative20.3%
Written reviews14 reviews
Positive64.3%
Neutral0.0%
Negative35.7%

Inference Ace

All ratings21 ratings
Positive66.7%
Neutral4.8%
Negative28.6%
Written reviews35 reviews
Positive88.6%
Neutral5.7%
Negative5.7%

In-app purchases

1 purchases

Rounding

One-time1
  • Remove Ads$4.99
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

Questions

Is Rounding free?
Rounding is free to download, with in-app purchases available.
Is Inference Ace free?
Inference Ace is free to download, with in-app purchases available.
Which has better reviews, Rounding or Inference Ace?
Rounding is rated higher. Rounding averages 4.0 out of 5 from 80 ratings, while Inference Ace averages 3.5 from 22 ratings.
Do Rounding or Inference Ace have ads?
Rounding shows ads; Inference Ace does not.
Which is updated more often, Rounding or Inference Ace?
Rounding ships an update every 12 months, and Inference Ace every 7 months. Most recently, Rounding was updated on November 6, 2026 and Inference Ace on November 6, 2026.

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