# Quick Math Jr. vs Number Rack, by MLC

The clearest difference is review sentiment: Number Rack, by MLC at 100% against Quick Math Jr.'s 43%. Number Rack, by MLC also leads on in-app purchases (none vs 4). Quick Math Jr.'s advantage is update cadence (every 3 weeks vs every 25 months) and rating (3.6 vs 3.2). On price and ads there is nothing between them.

Both are free to download. Quick Math Jr. sells 4 one-off in-app purchases. Number Rack, by MLC asks for nothing beyond the download.

Quick Math Jr. holds the better App Store score, 3.6 against 3.2. That said, the two scores are not equally well evidenced: Quick Math Jr. has 338 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 43% of Quick Math Jr.'s written reviews are positive against 100% of Number Rack, by MLC's, so the app with the better star average is not the one people write more warmly about.

Quick Math Jr. ships an update every 3 weeks, Number Rack, by MLC every 25 months. The most recent releases landed on September 22, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | Quick Math Jr. | Number Rack, by MLC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (338 ratings)](https://appshunter.io/ios/app/quick-math-jr/id926078360/reviews)** | [3.2 (9 ratings)](https://appshunter.io/ios/app/number-rack-by-mlc/id1469094747/reviews) |
| Number of ratings | **338** | 9 |
| Positive reviews | 43.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 25 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 132 MB | 4 MB |
| Requires iOS | **7.0** | 14.7 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shiny Things](https://appshunter.io/developer/456805308) | [The Math Learning Center](https://appshunter.io/developer/1542700905) |

## What reviewers say

### Quick Math Jr.

[App page](https://appshunter.io/ios/app/quick-math-jr/id926078360)

This app offers engaging math games for young children aged 3-7, covering essential foundational skills like counting, addition, subtraction, and number writing. It features adaptive difficulty to suit individual learning paces and allows for personalized monster character creation.

**Highlights:** Twelve curriculum-aligned math games, Adaptive difficulty, Handwritten number input, Monster character customization, Unlimited player profiles, Progress reports

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spooky Town | $4.99 | one-time |
| Mad Science Island | $4.99 | one-time |
| Medieval Island | $4.99 | one-time |
| Unlock All Islands | $9.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging learning experience
- 🚀 Effective at teaching math concepts
- 💡 Customizable monsters motivate learning
- 🎨 Appealing visual design and graphics

**What reviewers complain about**

- 🐛 App crashes or stops working after updates
- 🔒 Issues with in-app purchases and family sharing
- 🔋 App no longer compatible with newer iOS versions

**Reported bugs**

- App crashes on launch
- Audio not working
- Inability to restore in-app purchases

**Requested features**

- More advanced math levels and content
- Ability to sync progress across devices
- Better parental controls and account management


### 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


## Frequently asked questions

### Is Quick Math Jr. free?

Quick Math Jr. is free to download, with in-app purchases available.

### Is Number Rack, by MLC free?

Number Rack, by MLC is free to download, with no in-app purchases.

### Which has better reviews, Quick Math Jr. or Number Rack, by MLC?

Quick Math Jr. is rated higher. Quick Math Jr. averages 3.6 out of 5 from 338 ratings, while Number Rack, by MLC averages 3.2 from 9 ratings.

### Do Quick Math Jr. or Number Rack, by MLC have ads?

Neither Quick Math Jr. nor Number Rack, by MLC shows ads.

### Which is updated more often, Quick Math Jr. or Number Rack, by MLC?

Quick Math Jr. ships an update every 3 weeks, and Number Rack, by MLC every 25 months. Most recently, Quick Math Jr. was updated on September 22, 2026 and Number Rack, by MLC on June 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.*