# Blue vs Kai's Eye Robot Tracker

The clearest difference is rating: Blue at 3.7 against Kai's Eye Robot Tracker's 2.3. Blue also leads on iOS requirement (12.4 vs 15.0). Kai's Eye Robot Tracker's advantage is review sentiment (80% vs 43%) and update cadence (every 6 weeks vs every 3 months). On price, ratings volume, 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.

Blue holds the better App Store score, 3.7 against 2.3. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews complicate that: 43% of Blue's written reviews are positive against 80% of Kai's Eye Robot Tracker's, so the app with the better star average is not the one people write more warmly about.

Blue ships an update every 3 months, Kai's Eye Robot Tracker every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Blue | Kai's Eye Robot Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/blue-bot/id957753068/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/kais-eye-robot-tracker/id1488856584/reviews) |
| Number of ratings | **7** | 3 |
| Positive reviews | 42.9% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 130 MB | 312 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) | [Kai's Education Limited](https://appshunter.io/developer/1460744915) |

## 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


### Kai's Eye Robot Tracker

[App page](https://appshunter.io/ios/app/kais-eye-robot-tracker/id1488856584)

This app allows users to track and code Kai robots on a special mat. It brings coding to life through augmented and virtual reality, enabling users to complete missions and learn programming concepts.

**Highlights:** Track Kai robots on a mat, Code robots to drive, Augmented Reality visualization, Virtual Reality visualization, Complete coding missions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Blue free?

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

### Is Kai's Eye Robot Tracker free?

Kai's Eye Robot Tracker is free to download, with no in-app purchases.

### Which has better reviews, Blue or Kai's Eye Robot Tracker?

Blue is rated higher. Blue averages 3.7 out of 5 from 7 ratings, while Kai's Eye Robot Tracker averages 2.3 from 3 ratings.

### Do Blue or Kai's Eye Robot Tracker have ads?

Neither Blue nor Kai's Eye Robot Tracker shows ads.

### Which is updated more often, Blue or Kai's Eye Robot Tracker?

Blue ships an update every 3 months, and Kai's Eye Robot Tracker every 6 weeks. Most recently, Blue was updated on November 1, 2026 and Kai's Eye Robot Tracker 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.*