# Pearl Diver vs Math Copilot Number Line

The clearest difference is update cadence: Math Copilot Number Line at every 2 weeks against Pearl Diver's every 20 months. Math Copilot Number Line also leads on review sentiment (100% vs 76%) and iOS requirement (12.0 vs 17.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Pearl Diver against 5.0 for Math Copilot Number Line. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews are what separate them: 76% of Pearl Diver's written reviews are positive against 100% of Math Copilot Number Line's.

Pearl Diver ships an update every 20 months, Math Copilot Number Line every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Pearl Diver | Math Copilot Number Line |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pearl-diver-number-line-math/id337567843/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/math-copilot-number-line/id1507464772/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 76.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 28 MB | 11 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [New Mexico State University Board of Regents](https://appshunter.io/developer/337567846) | [Andrew Catton](https://appshunter.io/developer/1466700730) |

## 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


### Math Copilot Number Line

[App page](https://appshunter.io/ios/app/math-copilot-number-line/id1507464772)

This interactive tool helps young children aged 3-8 explore numbers and basic arithmetic. It provides an unlimited, zoomable number line for hands-on learning and visualizing calculations. The app encourages number sense development through play and manipulation.

**Highlights:** Unlimited scrolling number line, Pinch-to-zoom scale adjustment, Direct arithmetic interaction, Playback of calculations, Drag-and-drop equation manipulation, Highlight odds, evens, and skip counting

**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 Math Copilot Number Line free?

Math Copilot Number Line is free to download, with no in-app purchases.

### Which has better reviews, Pearl Diver or Math Copilot Number Line?

Pearl Diver and Math Copilot Number Line are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Pearl Diver or Math Copilot Number Line have ads?

Neither Pearl Diver nor Math Copilot Number Line shows ads.

### Which is updated more often, Pearl Diver or Math Copilot Number Line?

Pearl Diver ships an update every 20 months, and Math Copilot Number Line every 2 weeks. Most recently, Pearl Diver was updated on November 1, 2026 and Math Copilot Number Line on November 3, 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.*