# NumBots vs RackRush.kids

The clearest difference is update cadence: NumBots at every 5 weeks against RackRush.kids's every 8 months. NumBots also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

NumBots ships an update every 5 weeks, RackRush.kids every 8 months. The most recent releases landed on October 29, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | NumBots | RackRush.kids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (319 ratings)](https://appshunter.io/ios/app/numbots/id1448844836/reviews)** | — |
| Number of ratings | **319** | — |
| Positive reviews | 66.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 8 months |
| Monetization | Free | — |
| Size | 31 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Maths Circle Ltd](https://appshunter.io/developer/973811325) | [Btltech Ltd](https://appshunter.io/developer/1867542085) |

## What reviewers say

### NumBots

[App page](https://appshunter.io/ios/app/numbots/id1448844836)

This platform helps children master mental addition and subtraction, moving them from counting to calculating. It focuses on building understanding, recall, and fluency in these core math skills. Designed for early learners, it offers an engaging way to achieve mathematical proficiency.

**Highlights:** Master mental addition, Master mental subtraction, Build understanding, Develop recall, Achieve fluency, Transition from counting to calculating

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning math
- 🚀 Fun and engaging
- 💡 Helpful for improving math skills
- 💡 Customizable robot feature
- 👍 Useful for kids aged 4-7

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🔍 Unclear progression system
- ⏱️ Strict time limits
- 🤔 Repetitive levels
- 🤔 Not challenging enough for older kids

**Reported bugs**

- Coins and stars not tracking correctly
- Login issues across devices
- Keyboard not showing up on tablets
- Levels randomly locked or missing
- App crashing and freezing

**Requested features**

- More advanced levels and content
- Ability to skip to appropriate level
- Less emphasis on speed, more on accuracy
- Family account support
- Improved login and persistence


### RackRush.kids

[App page](https://appshunter.io/ios/app/rackrushkids/id6757763354)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NumBots free?

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

### Is RackRush.kids free?

RackRush.kids is free to download, with no in-app purchases.

### Do NumBots or RackRush.kids have ads?

Neither NumBots nor RackRush.kids shows ads.

### Which is updated more often, NumBots or RackRush.kids?

NumBots ships an update every 5 weeks, and RackRush.kids every 8 months. Most recently, NumBots was updated on October 29, 2026 and RackRush.kids on October 14, 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.*