# Pearl Diver vs Integer Multiplication

The clearest difference is price: Pearl Diver at Free against Integer Multiplication's $1.99. Integer Multiplication's advantage is iOS requirement (12.0 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Pearl Diver is free to download; Integer Multiplication costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pearl Diver ships an update every 20 months, Integer Multiplication every 31 months. The most recent releases landed on September 18, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Pearl Diver | Integer Multiplication |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pearl-diver-number-line-math/id337567843/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 76.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 20 months** | Every 31 months |
| Monetization | Free | — |
| Size | 28 MB | 37 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [New Mexico State University Board of Regents](https://appshunter.io/developer/337567846) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## What reviewers say

### Pearl Diver

[App page](https://appshunter.io/ios/app/pearl-diver-number-line-math/id337567843)

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:** macOS Compatibility

**In-app purchases:** none


### Integer Multiplication

[App page](https://appshunter.io/ios/app/integer-multiplication/id966357801)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pearl Diver free?

Pearl Diver is free to download, with no in-app purchases.

### Is Integer Multiplication free?

Integer Multiplication costs $1.99, with no in-app purchases.

### Do Pearl Diver or Integer Multiplication have ads?

Neither Pearl Diver nor Integer Multiplication shows ads.

### Which is updated more often, Pearl Diver or Integer Multiplication?

Pearl Diver ships an update every 20 months, and Integer Multiplication every 31 months. Most recently, Pearl Diver was updated on September 18, 2026 and Integer Multiplication on September 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*