# MGS 400 vs AddressIT

The clearest difference is review sentiment: MGS 400 at 100% against AddressIT's 0%. MGS 400 also leads on rating (5.0 vs 2.0). AddressIT's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

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 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of MGS 400's written reviews are positive against 0% of AddressIT's.

MGS 400 ships an update every 17 months, AddressIT every 16 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MGS 400 | AddressIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mgs-400/id1441402354/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/addressit/id1553934760/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Every 16 months** |
| Monetization | Ad-supported | **Free** |
| Size | 16 MB | 38 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MSA - The Safety Company](https://appshunter.io/developer/482957840) | [Carrier Corporation](https://appshunter.io/developer/542004889) |

## What reviewers say

### 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


### AddressIT

[App page](https://appshunter.io/ios/app/addressit/id1553934760)

This utility app allows users to configure IP addresses for various controllers from a single mobile device. It supports multiple controller types and offers addressing via IPv4 or device ID.

**Highlights:** Set IP addresses for controllers, Supports OptiFlex™, OptiCORE™, TruVu™, Address by IPv4, Address by device ID, Single location configuration

**In-app purchases:** none


## Frequently asked questions

### Is MGS 400 free?

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

### Is AddressIT free?

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

### Which has better reviews, MGS 400 or AddressIT?

MGS 400 is rated higher. MGS 400 averages 5.0 out of 5 from 1 ratings, while AddressIT averages 2.0 from 1 ratings.

### Do MGS 400 or AddressIT have ads?

MGS 400 shows ads; AddressIT does not.

### Which is updated more often, MGS 400 or AddressIT?

MGS 400 ships an update every 17 months, and AddressIT every 16 months. Most recently, MGS 400 was updated on October 14, 2026 and AddressIT on October 1, 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.*