Pearl Diver HD vs Pattern Sets
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Number line mastery
- Fractions and decimals
- Common Core standards alignment
- Progress tracking
- Educational game design
- Pearl collection gameplay
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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).
Pattern Sets
This app helps young learners develop number sense by practicing subitizing, the ability to quickly recognize quantities without counting. It features various dot patterns, dice patterns, and 10-frames for practice, with adjustable settings for exposure time and quantity range.
- Subitizing practice
- Dot patterns
- Dice patterns
- 10-frames
- Adjustable time and quantity
- Two-color patterns
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Subitizing, or quickly recognizing the quantity of objects in a group without having to count, is an important number sense skill. Practice recognizing the number of dots in a variety of pattern types including from 1 to 10 dots. Dice patterns and patterns based on 10-frames are included. Patterns are made with one or two colors. Set the length of time a pattern is shown and the range of dots displayed. The iPad version also incorporates up to 20 dots and two 10 Frames Pattern Sets is one app in the NumberSense series designed at Augustana College in Rock Island, Illinois for K-2 grade students. In addition to the support website, see www.augustana.edu/numbersense for information about the project. Pattern Sets is one app in the NumberSense series designed at Augustana College in Rock Island, Illinois for K-2 grade students. In addition to the support website, see www.augustana.edu/numbersense for information about the project.
Screenshots
Verdict
The clearest difference is rating: Pattern Sets at 5.0 against Pearl Diver HD's 1.5. Pattern Sets also leads on update cadence (every 7 months vs every 20 months) and iOS requirement (10.0 vs 17.6). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Pattern Sets holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Pearl Diver HD ships an update every 20 months, Pattern Sets every 7 months. Both last shipped on November 1, 2026.
| Parameter | Pearl Diver HD | Pattern Sets |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 20 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | New Mexico State University Board of Regents | Classroom Focused Software |
Customer experience
Pearl Diver HD
Pattern Sets
In-app purchases
Pearl Diver HD
No in-app purchases
Pattern Sets
No in-app purchases
Questions
Is Pearl Diver HD free?
Is Pattern Sets free?
Which has better reviews, Pearl Diver HD or Pattern Sets?
Do Pearl Diver HD or Pattern Sets have ads?
Which is updated more often, Pearl Diver HD or Pattern Sets?
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