# Blue vs Code Karts

The clearest difference is in-app purchases: Blue at none against Code Karts's 1. Code Karts's advantage is review sentiment (61% vs 43%) and ratings volume (147 vs 7). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Code Karts sells 1 one-off in-app purchase. Blue asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.7 for Blue against 3.8 for Code Karts. That said, the two scores are not equally well evidenced: Code Karts has 147 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 43% of Blue's written reviews are positive against 61% of Code Karts's.

Blue ships an update every 3 months, Code Karts every 4 months. The most recent releases landed on September 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Blue | Code Karts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (7 ratings)](https://appshunter.io/ios/app/blue-bot/id957753068/reviews) | **[3.8 (147 ratings)](https://appshunter.io/ios/app/code-karts-pre-coding-logic/id1222704761/reviews)** |
| Number of ratings | 7 | **147** |
| Positive reviews | 42.9% of reviews | **61.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 130 MB | 260 MB |
| Requires iOS | 12.4 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TTS Group Limited](https://appshunter.io/developer/500131642) | [EDOKI ACADEMY](https://appshunter.io/developer/555989645) |

## 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


### Code Karts

[App page](https://appshunter.io/ios/app/code-karts-pre-coding-logic/id1222704761)

This app introduces children aged 4 and up to pre-coding concepts through engaging logic puzzles presented as a raceway. It teaches fundamental coding principles and problem-solving skills through interactive gameplay, including counting in binary.

**Highlights:** Pre-coding logic puzzles, Learn to count in binary, Develop sequencing and problem-solving, Over 70 levels, Two game modes, Intuitive UI for young children

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game Unlock | $2.99 | one-time |

**What reviewers like**

- 👍 Great introduction to coding
- 👍 Fun and engaging for kids
- 👍 Good for logic and sequencing
- 👍 Quick customer support
- 👍 No ads

**What reviewers complain about**

- 👎 Requires purchase to continue
- 👎 Purchase not restoring
- 👎 Issues with family sharing
- 👎 Tedious arrow interaction
- 👎 Broken bonus level

**Reported bugs**

- Cannot restore purchases
- Purchased content not unlocking on new devices
- Family sharing not working for purchases
- Bonus level is unplayable/unexitable
- Back button not working in bonus level

**Requested features**

- Extend free trial
- Improve arrow interaction
- Add more levels
- Add option to reset progress
- Improve Turkish dubbing accuracy


## Frequently asked questions

### Is Blue free?

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

### Is Code Karts free?

Code Karts is free to download, with in-app purchases available.

### Which has better reviews, Blue or Code Karts?

Code Karts is rated higher. Blue averages 3.7 out of 5 from 7 ratings, while Code Karts averages 3.8 from 147 ratings.

### Do Blue or Code Karts have ads?

Neither Blue nor Code Karts shows ads.

### Which is updated more often, Blue or Code Karts?

Blue ships an update every 3 months, and Code Karts every 4 months. Most recently, Blue was updated on September 24, 2026 and Code Karts on October 12, 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.*