# Number Rack, by MLC vs Math Copilot Number Line

The clearest difference is rating: Math Copilot Number Line at 5.0 against Number Rack, by MLC's 3.2. Math Copilot Number Line also leads on update cadence (every 2 weeks vs every 25 months) and device support (3 vs 1). Number Rack, by MLC's advantage is ratings volume (9 vs 2). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Math Copilot Number Line holds the better App Store score, 5.0 against 3.2. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Number Rack, by MLC ships an update every 25 months, Math Copilot Number Line every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Number Rack, by MLC | Math Copilot Number Line |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (9 ratings)](https://appshunter.io/ios/app/number-rack-by-mlc/id1469094747/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/math-copilot-number-line/id1507464772/reviews)** |
| Number of ratings | **9** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 4 MB | 11 MB |
| Requires iOS | 14.7 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Math Learning Center](https://appshunter.io/developer/1542700905) | [Andrew Catton](https://appshunter.io/developer/1466700730) |

## What reviewers say

### Number Rack, by MLC

[App page](https://appshunter.io/ios/app/number-rack-by-mlc/id1469094747)

This virtual manipulative tool helps children develop number sense through interactive bead groupings. It supports exploration of addition and subtraction strategies with customizable rows and colors. Ideal for elementary classrooms, it includes annotation and sharing features.

**Highlights:** 1-10 rows of 10 beads, Resizable bead covers for subtraction, Color-coded bead rows, Annotation and drawing tools, Math text and writing tools, Shareable work via image or code

**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 Number Rack, by MLC free?

Number Rack, by MLC 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, Number Rack, by MLC or Math Copilot Number Line?

Math Copilot Number Line is rated higher. Number Rack, by MLC averages 3.2 out of 5 from 9 ratings, while Math Copilot Number Line averages 5.0 from 2 ratings.

### Do Number Rack, by MLC or Math Copilot Number Line have ads?

Neither Number Rack, by MLC nor Math Copilot Number Line shows ads.

### Which is updated more often, Number Rack, by MLC or Math Copilot Number Line?

Number Rack, by MLC ships an update every 25 months, and Math Copilot Number Line every 2 weeks. Most recently, Number Rack, by MLC was updated on October 24, 2026 and Math Copilot Number Line on October 24, 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.*