# ROBO Pro Smart vs Calliope mini

The clearest difference is update cadence: Calliope mini at every 3 months against ROBO Pro Smart's every 9 months. ROBO Pro Smart's advantage is iOS requirement (12.1 vs 15.0). On price, review sentiment, 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.

ROBO Pro Smart ships an update every 9 months, Calliope mini every 3 months. The most recent releases landed on October 12, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | ROBO Pro Smart | Calliope mini |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/robo-pro-smart/id1239734172/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 22.2% of reviews | **25.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 11 MB | 37 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [A B](https://appshunter.io/developer/1024482339) | [Calliope gGmbH](https://appshunter.io/developer/1309545544) |

## What reviewers say

### ROBO Pro Smart

[App page](https://appshunter.io/ios/app/robo-pro-smart/id1239734172)

This app allows users to build and control fischertechnik® BT Smart Controller models. Its intuitive, icon-based graphical interface uses drag-and-drop functionality for coding. It is optimized for iPads but also functions on iPhones.

**Highlights:** Build fischertechnik BT Smart Controller models, Intuitive icon-based graphical interface, Drag-and-drop coding functionality, Control models with created code, Optimized for iPad, works on iPhone

**Features:** macOS Compatibility

**In-app purchases:** none


### Calliope mini

[App page](https://appshunter.io/ios/app/calliope-mini/id1309545545)

This app allows users to program a micro-controller to build robots, transmit messages, and make things move. It features LEDs, buttons, sensors, and Bluetooth for creative coding projects.

**Highlights:** Program micro-controller, Build robots, Transmit messages, Control LEDs, Use motion sensor, Bluetooth communication

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

**In-app purchases:** none


## Frequently asked questions

### Is ROBO Pro Smart free?

ROBO Pro Smart is free to download, with no in-app purchases.

### Is Calliope mini free?

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

### Do ROBO Pro Smart or Calliope mini have ads?

Neither ROBO Pro Smart nor Calliope mini shows ads.

### Which is updated more often, ROBO Pro Smart or Calliope mini?

ROBO Pro Smart ships an update every 9 months, and Calliope mini every 3 months. Most recently, ROBO Pro Smart was updated on October 12, 2026 and Calliope mini on October 20, 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.*