Comparison

Pearl Diver HD vs Arithmetic Wiz

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

Head to head
About

Pearl Diver HD

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

Highlights
  • Number line mastery
  • Fractions and decimals
  • Common Core standards alignment
  • Progress tracking
  • Educational game design
  • Pearl collection gameplay
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. For information about learning effectiveness, see the Math Snacks Research Summary: http://mathsnacks.com/research.html For information about the NMSU Learning Games Lab, visit http://learninggameslab.org. 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). 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

Arithmetic Wiz

This app makes practicing arithmetic fun for children. It offers drills for addition, subtraction, multiplication, and division, with features like timed challenges, progress tracking, and global leaderboards. Kids can earn trophies and stars for achievements.

Highlights
  • Arithmetic drills (4 operations)
  • Timed challenges
  • Performance history tracking
  • Trophy and star rewards
  • Global leaderboards and rankings
  • Speed and score tracking
Features
Read full description

- Great way for kids to do arithmetic drills the fun way. Let them become very good at adding, subtracting, dividing and multiplying numbers, which are important life skills. "Son, do the drills now. Show me some progress before you play the other games." - Challenge your kid to complete the sums in record time and come back later to check his performance history. - Select one or more levels and start the game! - Earn trophies and the rare golden star for record performance. - Keep track of your scores and speed. - Compete with friends, family members and the rest of the world! - Check out your country ranking and world ranking. Beat the current world record - Visit our support website for more info and a video demo: www.therocketstudio.com/arithwizfree

Screenshots

Pearl Diver HD4 screens
Arithmetic Wiz4 screens

Verdict

The call

The clearest difference is rating: Arithmetic Wiz at 2.0 against Pearl Diver HD's 1.5. Arithmetic Wiz also leads on update cadence (every 4 months vs every 20 months) and iOS requirement (15.0 vs 17.6). Pearl Diver HD's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment, ratings volume 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. Arithmetic Wiz sells 1 one-off in-app purchase. Pearl Diver HD asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Arithmetic Wiz holds the better App Store score, 2.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 71% of Pearl Diver HD's written reviews are positive against 67% of Arithmetic Wiz's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Pearl Diver HD ships an update every 20 months, Arithmetic Wiz every 4 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
Pearl Diver HD versus Arithmetic Wiz: the parameters behind the verdict, then further details
ParameterPearl Diver HDArithmetic Wiz
PriceFreeFree
Rating1.5 (2 ratings)2.0 (1 ratings) — better
Positive reviews71.4% of reviews — better66.7% of reviews
Number of ratings2 — better1
Update frequencyEvery 20 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size28 MB10 MB
Age rating4+4+
DeveloperNew Mexico State University Board of RegentsThe Rocket Studio

Customer experience

Pearl Diver HD

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Arithmetic Wiz

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Pearl Diver HD

No in-app purchases

1 purchases

Arithmetic Wiz

One-time1
  • Arithmetic Wiz All 14 Levels$3.99

Questions

Is Pearl Diver HD free?
Pearl Diver HD is free to download, with no in-app purchases.
Is Arithmetic Wiz free?
Arithmetic Wiz is free to download, with in-app purchases available.
Which has better reviews, Pearl Diver HD or Arithmetic Wiz?
Arithmetic Wiz is rated higher. Pearl Diver HD averages 1.5 out of 5 from 2 ratings, while Arithmetic Wiz averages 2.0 from 1 ratings.
Do Pearl Diver HD or Arithmetic Wiz have ads?
Arithmetic Wiz shows ads; Pearl Diver HD does not.
Which is updated more often, Pearl Diver HD or Arithmetic Wiz?
Pearl Diver HD ships an update every 20 months, and Arithmetic Wiz every 4 months. Most recently, Pearl Diver HD was updated on November 1, 2026 and Arithmetic Wiz on November 6, 2026.

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