# GF Configuration Tool vs OPTICHECK Level Mobile

The clearest difference is update cadence: OPTICHECK Level Mobile at every 3 months against GF Configuration Tool's every 9 months. OPTICHECK Level Mobile also leads on iOS requirement (11.0 vs 13.0). 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.

GF Configuration Tool ships an update every 9 months, OPTICHECK Level Mobile every 3 months. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | GF Configuration Tool | OPTICHECK Level Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gf-configuration-tool/id1449999477/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 20 MB | 242 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| 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 Level Mobile

[App page](https://appshunter.io/ios/app/opticheck-level-mobile/id1596750666)

**Features:** macOS Compatibility

**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 Level Mobile free?

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

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

Neither GF Configuration Tool nor OPTICHECK Level Mobile shows ads.

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

GF Configuration Tool ships an update every 9 months, and OPTICHECK Level Mobile every 3 months. Most recently, GF Configuration Tool was updated on October 2, 2026 and OPTICHECK Level Mobile on October 4, 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.*