# iCorrTool vs MM

The clearest difference is update cadence: iCorrTool at every 3 months against MM's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

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

iCorrTool ships an update every 3 months, MM every 13 months. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | iCorrTool | MM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 13 months |
| Monetization | — | Free |
| Size | 48 MB | 10 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Steffel KKS GmbH](https://appshunter.io/developer/786166712) | [Benning Elektrotechnik und Elektronik GmbH & Co KG](https://appshunter.io/developer/1178975949) |

## What reviewers say

### iCorrTool

[App page](https://appshunter.io/ios/app/icorrtool/id786166709)

**Features:** macOS Compatibility

**In-app purchases:** none


### MM

[App page](https://appshunter.io/ios/app/mm-cm-link/id1123424956)

This app allows you to wirelessly transfer, view, and store measurement data from compatible BENNING digital multimeters and current clamp meters to your iOS device. Monitor changes in real-time, store data for projects, and share it in CSV format for further analysis.

**Highlights:** Wireless data transfer via Bluetooth LE, Real-time monitoring of measured values, Data visualization in line diagrams and tables, Store measurement series by project, Share data in CSV format via email, Read data from device loggers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iCorrTool free?

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

### Is MM free?

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

### Do iCorrTool or MM have ads?

Neither iCorrTool nor MM shows ads.

### Which is updated more often, iCorrTool or MM?

iCorrTool ships an update every 3 months, and MM every 13 months. Most recently, iCorrTool was updated on September 9, 2026 and MM on June 1, 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.*