# Rechenfeld vs senseBox connect

The clearest difference is price: senseBox connect at Free against Rechenfeld's $0.99. senseBox connect also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On update cadence, ads and in-app purchases there is nothing between them.

senseBox connect is free to download; Rechenfeld costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rechenfeld ships an update every 5 months, senseBox connect every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Rechenfeld | senseBox connect |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 17 MB | 37 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Christian Urff](https://appshunter.io/developer/415894463) | [senseBox by Reedu GmbH & Co. KG](https://appshunter.io/developer/1487303454) |

## What reviewers say

### Rechenfeld

[App page](https://appshunter.io/ios/app/rechenfeld/id1558366734)

This app provides a visual aid for understanding addition and subtraction within various number ranges. It's designed to help children, especially those with learning difficulties, grasp mathematical concepts through interactive manipulation of virtual objects.

**Highlights:** Visualizes addition and subtraction, Supports number ranges up to 1000, Interactive manipulation of virtual tiles, Helps develop number sense and strategies, Illustrates decimal system concepts, Displays problems on number line and arrow diagrams

**Features:** macOS Compatibility

**In-app purchases:** none


### senseBox connect

[App page](https://appshunter.io/ios/app/sensebox-connect/id1586961095)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rechenfeld free?

Rechenfeld costs $0.99, with no in-app purchases.

### Is senseBox connect free?

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

### Do Rechenfeld or senseBox connect have ads?

Neither Rechenfeld nor senseBox connect shows ads.

### Which is updated more often, Rechenfeld or senseBox connect?

Rechenfeld ships an update every 5 months, and senseBox connect every 3 months. Most recently, Rechenfeld was updated on November 3, 2026 and senseBox connect 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.*