# Blue vs Impero Backdrop

Blue and Impero Backdrop are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, Impero Backdrop every 2 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Blue | Impero Backdrop |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 130 MB | 63 MB |
| Requires iOS | 12.4 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TTS Group Limited](https://appshunter.io/developer/500131642) | [Impero Solutions Ltd](https://appshunter.io/developer/427812094) |

## 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


### Impero Backdrop

[App page](https://appshunter.io/ios/app/impero-backdrop/id1527399406)

**In-app purchases:** none


## Frequently asked questions

### Is Blue free?

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

### Is Impero Backdrop free?

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

### Do Blue or Impero Backdrop have ads?

Neither Blue nor Impero Backdrop shows ads.

### Which is updated more often, Blue or Impero Backdrop?

Blue ships an update every 3 months, and Impero Backdrop every 2 months. Most recently, Blue was updated on November 1, 2026 and Impero Backdrop on November 7, 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.*