# GF Configuration Tool vs TELEDYNE ISCO FlowCalc

The clearest difference is rating: GF Configuration Tool at 5.0 against TELEDYNE ISCO FlowCalc's 4.5. GF Configuration Tool also leads on ads (none vs shown) and monetization model (free vs ad-supported). TELEDYNE ISCO FlowCalc's advantage is update cadence (weekly vs every 9 months). On price, ratings volume, 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 holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

GF Configuration Tool ships an update every 9 months, TELEDYNE ISCO FlowCalc weekly. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | GF Configuration Tool | TELEDYNE ISCO FlowCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gf-configuration-tool/id1449999477/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/teledyne-isco-flowcalc/id6504916802/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 20 MB | 26 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Georg Fischer AG](https://appshunter.io/developer/483566406) | [FutureSight Studios Ltd](https://appshunter.io/developer/1752834411) |

## 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


### TELEDYNE ISCO FlowCalc

[App page](https://appshunter.io/ios/app/teledyne-isco-flowcalc/id6504916802)

This utility app provides quick and accurate open channel flow rate calculations for field or office use. Select your measurement method, enter dimensions and head/velocity, and receive instant results. It supports multiple flow methods, area-velocity calculations, and unit switching.

**Highlights:** Instant flow rate calculations, Multiple weir and flume types, Area-velocity mode for pipes, Save favorite site setups, Imperial and metric unit support, Based on ISCO Handbook formulas

**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 TELEDYNE ISCO FlowCalc free?

TELEDYNE ISCO FlowCalc is free to download, with no in-app purchases.

### Which has better reviews, GF Configuration Tool or TELEDYNE ISCO FlowCalc?

GF Configuration Tool is rated higher. GF Configuration Tool averages 5.0 out of 5 from 2 ratings, while TELEDYNE ISCO FlowCalc averages 4.5 from 2 ratings.

### Do GF Configuration Tool or TELEDYNE ISCO FlowCalc have ads?

TELEDYNE ISCO FlowCalc shows ads; GF Configuration Tool does not.

### Which is updated more often, GF Configuration Tool or TELEDYNE ISCO FlowCalc?

GF Configuration Tool ships an update every 9 months, and TELEDYNE ISCO FlowCalc weekly. Most recently, GF Configuration Tool was updated on November 2, 2026 and TELEDYNE ISCO FlowCalc on November 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.*