# BITZER Smart Connect Pro vs MGS 400

The clearest difference is ads: BITZER Smart Connect Pro at none against MGS 400's shown. BITZER Smart Connect Pro also leads on iOS requirement (11.0 vs 14.0). On price, update cadence, 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.

BITZER Smart Connect Pro ships an update every 9 months, MGS 400 every 17 months. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | BITZER Smart Connect Pro | MGS 400 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mgs-400/id1441402354/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 months** | Every 17 months |
| Monetization | — | Ad-supported |
| Size | 1 MB | 16 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Bitzer Electronics A/S](https://appshunter.io/developer/1055629875) | [MSA - The Safety Company](https://appshunter.io/developer/482957840) |

## What reviewers say

### BITZER Smart Connect Pro

[App page](https://appshunter.io/ios/app/bitzer-smart-connect-pro/id1282966559)

**Features:** macOS Compatibility

**In-app purchases:** none


### MGS 400

[App page](https://appshunter.io/ios/app/mgs-400/id1441402354)

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.

**Highlights:** Bluetooth connectivity, Device configuration, Alarm threshold adjustment, Maintenance testing, Zero/span calibration, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BITZER Smart Connect Pro free?

BITZER Smart Connect Pro is free to download, with no in-app purchases.

### Is MGS 400 free?

MGS 400 is free to download, with no in-app purchases.

### Do BITZER Smart Connect Pro or MGS 400 have ads?

MGS 400 shows ads; BITZER Smart Connect Pro does not.

### Which is updated more often, BITZER Smart Connect Pro or MGS 400?

BITZER Smart Connect Pro ships an update every 9 months, and MGS 400 every 17 months. Most recently, BITZER Smart Connect Pro was updated on October 8, 2026 and MGS 400 on October 14, 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.*