# Blue vs Marty the Robot V2

The clearest difference is review sentiment: Marty the Robot V2 at 100% against Blue's 43%. Marty the Robot V2 also leads on update cadence (fortnightly vs every 3 months). Blue's advantage is iOS requirement (12.4 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Blue ships an update every 3 months, Marty the Robot V2 fortnightly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Blue | Marty the Robot V2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/blue-bot/id957753068/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 130 MB | 130 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TTS Group Limited](https://appshunter.io/developer/500131642) | [Robotical Ltd](https://appshunter.io/developer/1317775542) |

## 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


### Marty the Robot V2

[App page](https://appshunter.io/ios/app/marty-the-robot-v2/id1501371495)

This app allows users to connect to a physical robot via Bluetooth, bringing it to life for interactive learning. It offers block-based coding to teach robotics, programming, and engineering concepts to children.

**Highlights:** Bluetooth robot connectivity, Block-based coding (Scratch-based), Robotics and engineering education, Interactive robot control, Teaching resources and lesson plans

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blue free?

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

### Is Marty the Robot V2 free?

Marty the Robot V2 is free to download, with no in-app purchases.

### Do Blue or Marty the Robot V2 have ads?

Neither Blue nor Marty the Robot V2 shows ads.

### Which is updated more often, Blue or Marty the Robot V2?

Blue ships an update every 3 months, and Marty the Robot V2 fortnightly. Most recently, Blue was updated on November 1, 2026 and Marty the Robot V2 on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*