Comparison

Pearl Diver vs Math Facts Fluency

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

Head to head
About

Pearl Diver

Dive into the ocean to master the number line, including fractions and decimals, by collecting pearls. This educational game is designed by experts to align with Common Core standards for grades 3-8.

Highlights
  • Number line mastery
  • Fractions and decimals
  • Common Core alignment
  • Progress tracking
  • Educational game design
Features
Read full description

Throw on your diving helmet, and head into the depths of the sea! Master the number line, including fractions and decimals, while gathering beautiful pearls. Will you find the elusive black pearl? • Ideal for elementary and middle school students, grades 3-8. Developed by mathematics educators, researchers, and game developers at the Learning Games Lab at New Mexico State University. Games developed by the Learning Games Lab undergo a rigorous instructional design process, extensive user testing, and input from learners, teachers, and researchers. Pearl Diver addresses Common Core standards relevant to the number line and properties of numbers, including: • Understanding numbers, ways of representing numbers, and number systems. • Understanding and representing commonly used fractions. • Understanding fractions as part of unit wholes and as locations on number lines. • Comparing and ordering fractions, and finding their approximate locations on the number line. Read about research documenting learning effectiveness of Math Snacks: http://mathsnacks.com/research.html Pearl Diver was developed as part of the "Math Snacks" initiative. Other free animations, activities, and games are available through the Math Snacks web site at http://mathsnacks.org. Math Snack materials were developed with support from the National Science Foundation (0918794 & 1503507). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Some materials were originally prototyped or discussed as part of a cooperative agreement from the U.S. Department of Education (U295A050004).

About

Math Facts Fluency

This app helps children achieve fluency in multiplication and division math facts through timed practice and a rewarding game center. It offers progress tracking and is designed for children with and without special needs, as well as adults learning English.

Highlights
  • Multiplication and division fact practice
  • Timed challenges for fluency
  • Progress tracking and reporting
  • Reward center for motivation
  • Designed for special needs learners
  • Suitable for adults learning ESL
Features
Read full description

** Happy Frog Apps is a Mom’s Choice Award Winner! Also featured on FunEducationalApps.com, TeachersWithApps.com, and more! ** Math Facts Fluency: Easy-to-use, built-in rewards and excellent reporting. The only app you'll need to ensure your child is completely fluent in multiplication and division math facts. What parents say about our awesome apps: *** 5 stars! My son tried other apps, but after using them, I couldn't tell how well he knew his math facts. Was he done? Did he still need practice? With your app, I know exactly how he is doing - and best of all, he LOVES working for the reward game. *** 5 stars! I like how my son can progress independently. The timer feature really ensures fluency. His recall is MUCH improved. Thanks!
 Math Fact fluency is *vital* for math success. Fluency frees up your learner's working memory, allowing more "brain space" for problem solving. Make math easier for your child by ensuring they know their math facts fluently (should be able to answer in about one second!) Math Facts Fluency Builder provides: -- Multiplication and division math facts introduced in learnable groups. -- Built-in timers to ensure fluency at all levels. Earlier levels allow more time. Final levels require FAST answering! -- Students progress only when mastery of the current skill is demonstrated. -- 'At a glance' reporting shows you instantly how your learner is progressing. -- The fun Reward Center motivates even hesitant learners. 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! Our apps are also suitable for adults dealing with aphasia or learning English as a Second Language. 
To evaluate the app, download the free version, which has four free levels. Additional levels and additional players can be accessed with in-app purchases. (All levels can be purchased for $2.99 -- price may change.)

 If you prefer no in-app purchases, download the School Edition of this app, which includes all levels and up to 10 players. 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.  We collect NO private information in our app. None! Our apps do not allow unrestricted web or social media access. We conform to the Children's Online Privacy Protection Act.

Screenshots

Pearl Diver4 screens
Math Facts Fluency4 screens

Verdict

The call

The clearest difference is rating: Pearl Diver at 5.0 against Math Facts Fluency's 3.0. Pearl Diver also leads on in-app purchases (none vs 3) and update cadence (every 20 months vs every 53 months). Math Facts Fluency's advantage is iOS requirement (12.2 vs 17.6). On price, ratings volume, 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. Math Facts Fluency sells 3 one-off in-app purchases. Pearl Diver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pearl Diver holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Pearl Diver ships an update every 20 months, Math Facts Fluency every 53 months. The most recent releases landed on September 18, 2026 and June 3, 2026 respectively.

Scorecard5 real differences · 5 level
Pearl Diver versus Math Facts Fluency: the parameters behind the verdict, then further details
ParameterPearl DiverMath Facts Fluency
PriceFreeFree
Rating5.0 (2 ratings) — better3.0 (2 ratings)
Positive reviews76.2% of reviews
Number of ratings22
Update frequencyEvery 20 months — betterEvery 53 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.612.2 — better
Further details — not scored
Size28 MB17 MB
Age rating4+4+
DeveloperNew Mexico State University Board of RegentsJanine Toole

Customer experience

Pearl Diver

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive76.2%
Neutral4.8%
Negative19.0%

Math Facts Fluency

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Pearl Diver

No in-app purchases

3 purchases

Math Facts Fluency

One-time3
  • 2 Users$1.99
  • All Levels$2.99
  • Up to 10 Users$3.99

Questions

Is Pearl Diver free?
Pearl Diver is free to download, with no in-app purchases.
Is Math Facts Fluency free?
Math Facts Fluency is free to download, with in-app purchases available.
Which has better reviews, Pearl Diver or Math Facts Fluency?
Pearl Diver is rated higher. Pearl Diver averages 5.0 out of 5 from 2 ratings, while Math Facts Fluency averages 3.0 from 2 ratings.
Do Pearl Diver or Math Facts Fluency have ads?
Neither Pearl Diver nor Math Facts Fluency shows ads.
Which is updated more often, Pearl Diver or Math Facts Fluency?
Pearl Diver ships an update every 20 months, and Math Facts Fluency every 53 months. Most recently, Pearl Diver was updated on September 18, 2026 and Math Facts Fluency on June 3, 2026.

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