PLUS+1® Service Tool vs MGS 400
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PLUS+1® Service Tool
This tool allows for diagnostics and parameter downloads to electronic components. It connects to controllers for performance logging and tuning, streamlining the development of advanced machinery.
- Perform diagnostics on electronic components
- Download applications to controllers
- Download parameters to controllers
- Log controller performance
- Tune controller performance
- Accelerate development process
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The PLUS+1® Service Tool performs diagnostics on PLUS+1® electronic components. In PLUS+1® GUIDE you build your application with drag-and-drop logical components or software blocks in the graphical interface. It is engineered to accelerate your development process and bring higher quality machines to market faster. Use the PLUS+1® Service Tool to download the built application to a controller. You can download parameters to a controller, then you can log and tune the controller performance.
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 PLUS+1® Service Tool's 4.0. PLUS+1® Service Tool's advantage is ads (none vs shown) and update cadence (every 4 months vs every 17 months). On price, ratings volume, in-app purchases and device support 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 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
PLUS+1® Service Tool ships an update every 4 months, MGS 400 every 17 months. The most recent releases landed on September 14, 2026 and June 9, 2026 respectively.
| Parameter | PLUS+1® Service Tool | MGS 400 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 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 | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 57 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Danfoss A/S | MSA - The Safety Company |
Customer experience
PLUS+1® Service Tool
MGS 400
In-app purchases
PLUS+1® Service Tool
No in-app purchases
MGS 400
No in-app purchases
Questions
Is PLUS+1® Service Tool free?
Is MGS 400 free?
Which has better reviews, PLUS+1® Service Tool or MGS 400?
Do PLUS+1® Service Tool or MGS 400 have ads?
Which is updated more often, PLUS+1® Service Tool or MGS 400?
Other comparisons
