# GF Configuration Tool vs OPTICHECK Flow Mobile

The clearest difference is rating: GF Configuration Tool at 5.0 against OPTICHECK Flow Mobile's 4.0. GF Configuration Tool also leads on iOS requirement (13.0 vs 16.4). OPTICHECK Flow Mobile's advantage is update cadence (every 3 months vs every 9 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.

GF Configuration Tool holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

GF Configuration Tool ships an update every 9 months, OPTICHECK Flow Mobile every 3 months. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | GF Configuration Tool | OPTICHECK Flow Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gf-configuration-tool/id1449999477/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/opticheck-flow-mobile/id1476806101/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 20 MB | 361 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Georg Fischer AG](https://appshunter.io/developer/483566406) | [KROHNE Messtechnik GmbH](https://appshunter.io/developer/1445655816) |

## What reviewers say

### GF Configuration Tool

[App page](https://appshunter.io/ios/app/gf-configuration-tool/id1449999477)

Configure your 2581 FlowtraMag Meter with this utility. Adjust flow and totalizer units, averaging, sensitivity, and output span. Monitor your device directly from your iOS device.

**Highlights:** Configure 2581 FlowtraMag Meter, Adjust flow and totalizer units, Set averaging and sensitivity, Span 4 to 20 mA output, Monitor FlowtraMag on iOS

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

**In-app purchases:** none


### OPTICHECK Flow Mobile

[App page](https://appshunter.io/ios/app/opticheck-flow-mobile/id1476806101)

This utility app facilitates the wireless setup, verification, and ongoing monitoring of specific KROHNE flow meters. It enables secure Bluetooth® connectivity for device configuration and performance checks without interrupting ongoing measurements.

**Highlights:** Wireless device commissioning, Device parameterization via Bluetooth®, Verification without measurement interruption, Monitoring of meter performance, Monitoring of application parameters

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

**In-app purchases:** none


## Frequently asked questions

### Is GF Configuration Tool free?

GF Configuration Tool is free to download, with no in-app purchases.

### Is OPTICHECK Flow Mobile free?

OPTICHECK Flow Mobile is free to download, with no in-app purchases.

### Which has better reviews, GF Configuration Tool or OPTICHECK Flow Mobile?

GF Configuration Tool is rated higher. GF Configuration Tool averages 5.0 out of 5 from 2 ratings, while OPTICHECK Flow Mobile averages 4.0 from 2 ratings.

### Do GF Configuration Tool or OPTICHECK Flow Mobile have ads?

Neither GF Configuration Tool nor OPTICHECK Flow Mobile shows ads.

### Which is updated more often, GF Configuration Tool or OPTICHECK Flow Mobile?

GF Configuration Tool ships an update every 9 months, and OPTICHECK Flow Mobile every 3 months. Most recently, GF Configuration Tool was updated on October 2, 2026 and OPTICHECK Flow Mobile on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*