BITZER Electronics ServiceTool vs MGS 400
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BITZER Electronics ServiceTool
This application allows for Bluetooth connectivity to specific BITZER IQ products. Users can configure devices, monitor operations, view alarms with help texts, and retrieve logs for visualization and cloud upload.
- Bluetooth connectivity
- Device configuration
- Operation monitoring
- Alarm viewing with help texts
- Log retrieval and visualization
- Cloud upload for logs
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This is the App edition of the BEST SOFTWARE (BITZER Electronics Service Tool) for connecting to BITZER IQ products that support Bluetooth. Quickly configure the devices, monitor the operation and view the alarms including alarm help texts. Furthermore, the logs can be retrieved from the devices, visualized and uploaded to the myBITZERcloud for storage and sharing with other devices and peoples. Supported products: // IQ MODULE CM-RC-02 // IQ MODULE CM-RC-01 - Requires firmware version 2.5.246.00 or newer - For firmware update use the Windows version of BEST as it requires to connect via the BEST converter // IQ MODULE CM-SW-01 - Requires firmware version 2.8.82.00 or newer - For firmware update use the Windows version of BEST as it requires to connect via the BEST converter // CSV - Bluetooth is available by the CSV frequency inverters with the control board of the 2nd generation. This control board can be recognized by the STO input (orange connector) or the RJ12 socket for the BEST converter - Requires firmware version 1.92 or newer - For first configuration (change of refrigerant or configuring the compressor type in case of spare parts) use the Windows version of BEST as it requires to connect via the BEST converter. Also for firmware updates // ECOSTAR LHV5E and LHV7E - Requires firmware version 5.0.2.0 or newer - For firmware update use the Windows version of BEST
MGS 400
This app connects to compatible gas detectors via Bluetooth, simplifying configuration, maintenance, and calibration. It replaces the need for specialized tools and training, ensuring compliance with safety standards.
- Bluetooth connectivity
- Device configuration
- Alarm threshold adjustment
- Maintenance testing
- Zero/span calibration
- Intuitive interface
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The Bacharach MGS-400 App allows users to configure, maintain and interface with compatible MGS-400 gas detectors. Once a Bluetooth connection has been established, the app replaces the need for specialty training/tools and makes compliance with safety standards (ASHRAE 15, EN 378) easy and effective. Features include: - Configuration (Rename device, define alarm thresholds, adjust Modbus settings, configure relay behavior and manage analog output settings.) - Maintenance (Test LED/buzzer function, relays, and analog output level.) - Calibration (View sensor type, serial number and “Calibration Due” timer and initiate zero / span calibrations with customizable field calibration certificate.) - Intuitive Interface (View current gas measurement and acknowledge alarm / fault status.)
Screenshots
Verdict
The clearest difference is rating: MGS 400 at 5.0 against BITZER Electronics ServiceTool's 3.0. BITZER Electronics ServiceTool's advantage is ads (none vs shown) and update cadence (every 3 months vs every 17 months). On price, review sentiment, ratings volume and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MGS 400 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
BITZER Electronics ServiceTool ships an update every 3 months, MGS 400 every 17 months. The most recent releases landed on August 29, 2026 and June 9, 2026 respectively.
| Parameter | BITZER Electronics ServiceTool | MGS 400 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 months — better | Every 17 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 248 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | BITZER SE | MSA - The Safety Company |
Customer experience
BITZER Electronics ServiceTool
MGS 400
In-app purchases
BITZER Electronics ServiceTool
No in-app purchases
MGS 400
No in-app purchases
Questions
Is BITZER Electronics ServiceTool free?
Is MGS 400 free?
Which has better reviews, BITZER Electronics ServiceTool or MGS 400?
Do BITZER Electronics ServiceTool or MGS 400 have ads?
Which is updated more often, BITZER Electronics ServiceTool or MGS 400?
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