Comparison

FST TechTool vs GEMÜ App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FST TechTool

This app helps machine shops and manufacturing facilities monitor and maintain fluids. It allows technicians to record fluid maintenance data, track inventory, and generate reports for managers. Optimize machining processes and enhance fluid performance from anywhere.

Highlights
  • Monitor pH and refractometer readings
  • Track coolant and oil usage
  • Manage waste, recycling, and inventory
  • Generate data reports
  • Barcode scanning for machines
  • Electronic work orders
Features
Read full description

FST TechTool, from Fluid Service Technologies, is the most comprehensive mobile app for monitoring and maintaining fluids in machine shops and related manufacturing facilities. TechTool provides critical fluid monitoring that can help enhance fluid performance and extend fluid life. TechTool helps technicians and managers optimize their machining processes by enabling users to manage data from anywhere in the facility using an iPhone or iPad. TechTool allows technicians around the world to quickly enter all fluid maintenance related data. With this app you can easily determine what fluid is being used in a machine as well as when a machine was last serviced and identify the service technician. Features of this app include pH readings, refractometer readings and the amount of waste, recycling and inventory you have in stock. All data can be generated into a report to be sent to managers and other departments. FEATURES • Easy-to-Use • Monitor pH, view refractometer readings, coolant condition, and more • Track coolant usage, oil usage, recycling & waste • Troubleshooting at your fingertips • Data export for reporting purposes • Easily view machine cleanout history • Barcode scan capability for each machine • Electronic work orders that can be sent to customer & managers on-site BENEFITS • Saves you time and money • Reduces labor costs • Data storage in one place electronically for easy access • Helps you run more efficient reports • Improves communication & reporting • Saves the environment (paperless)

About

GEMÜ App

Access digital services for process industry valve, measurement, and control systems. Quickly contact the company, retrieve product documentation, and configure devices via Bluetooth. Identify products using QR codes or RFID tags for instant information retrieval.

Highlights
  • Contact GEMÜ easily
  • On-the-go product documentation
  • Bluetooth device operation & configuration
  • QR code/RFID product identification
  • Article-specific information access
Features
Read full description

Benefit from numerous digital services for valve, measurement and control systems in the process industry with the GEMÜ App! - Quick and easy way to contact GEMÜ - Documentation for every GEMÜ product can be called up on the go - Convenient operation and configuration of GEMÜ products with Bluetooth interface - Unique identification of GEMÜ products with QR code or RFID tag - Access to article-specific information without long searches You can find further information at www.gemu-group.com/app

Screenshots

FST TechTool2 screens
GEMÜ App4 screens

Verdict

The call

The clearest difference is rating: FST TechTool at 4.5 against GEMÜ App's 4.0. FST TechTool also leads on iOS requirement (7.0 vs 16.8). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

FST TechTool holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

FST TechTool ships an update every 2 months, GEMÜ App every 3 months. The most recent releases landed on October 5, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 8 level
FST TechTool versus GEMÜ App: the parameters behind the verdict, then further details
ParameterFST TechToolGEMÜ App
PriceFreeFree
Rating4.5 (4 ratings) — better4.0 (5 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings45 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS7.0 — better16.8
Further details — not scored
Size87 MB193 MB
Age rating4+4+
DeveloperFluid Service TechnologiesGEMU Gebr. Mueller Apparatebau GmbH & Co. Kommanditgesellschaft

Customer experience

FST TechTool

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

GEMÜ App

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FST TechTool

No in-app purchases

None

GEMÜ App

No in-app purchases

Questions

Is FST TechTool free?
FST TechTool is free to download, with no in-app purchases.
Is GEMÜ App free?
GEMÜ App is free to download, with no in-app purchases.
Which has better reviews, FST TechTool or GEMÜ App?
FST TechTool is rated higher. FST TechTool averages 4.5 out of 5 from 4 ratings, while GEMÜ App averages 4.0 from 5 ratings.
Do FST TechTool or GEMÜ App have ads?
Neither FST TechTool nor GEMÜ App shows ads.
Which is updated more often, FST TechTool or GEMÜ App?
FST TechTool ships an update every 2 months, and GEMÜ App every 3 months. Most recently, FST TechTool was updated on October 5, 2026 and GEMÜ App on September 27, 2026.

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