# Blue vs NumBots

The clearest difference is rating: NumBots at 4.7 against Blue's 3.7. NumBots also leads on review sentiment (66% vs 43%) and ratings volume (322 vs 7). Blue's advantage is iOS requirement (12.4 vs 15.0). On price, update cadence, 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.

NumBots holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: NumBots has 322 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 43% of Blue's written reviews are positive against 66% of NumBots's.

Blue ships an update every 3 months, NumBots every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Blue | NumBots |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (7 ratings)](https://appshunter.io/ios/app/blue-bot/id957753068/reviews) | **[4.7 (322 ratings)](https://appshunter.io/ios/app/numbots/id1448844836/reviews)** |
| Number of ratings | 7 | **322** |
| Positive reviews | 42.9% of reviews | **66.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 130 MB | 30 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TTS Group Limited](https://appshunter.io/developer/500131642) | [Maths Circle Ltd](https://appshunter.io/developer/973811325) |

## What reviewers say

### Blue

[App page](https://appshunter.io/ios/app/blue-bot/id957753068)

This app allows children to create and execute algorithms for a robot. It offers step-by-step and drag-and-drop programming, with features like repeats and 45-degree turns. Challenge modes introduce obstacles and limited controls for added difficulty.

**Highlights:** Step-by-step programming, Drag and drop interface, Repeat commands, 45-degree turns, Obstacle challenges, Customizable voice commands

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Blue free?

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

### Is NumBots free?

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

### Which has better reviews, Blue or NumBots?

NumBots is rated higher. Blue averages 3.7 out of 5 from 7 ratings, while NumBots averages 4.7 from 322 ratings.

### Do Blue or NumBots have ads?

Neither Blue nor NumBots shows ads.

### Which is updated more often, Blue or NumBots?

Blue ships an update every 3 months, and NumBots every 2 months. Most recently, Blue was updated on November 1, 2026 and NumBots 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.*