# ConXus vs Alarm Central USA

The clearest difference is review sentiment: Alarm Central USA at 100% against ConXus's 14%. Alarm Central USA also leads on rating (4.3 vs 2.5) and iOS requirement (12.0 vs 17.6). ConXus's advantage is ratings volume (26 vs 3). On price, update cadence, ads 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.

Alarm Central USA holds the better App Store score, 4.3 against 2.5. That said, the two scores are not equally well evidenced: ConXus has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 14% of ConXus's written reviews are positive against 100% of Alarm Central USA's.

ConXus ships an update every 2 months, Alarm Central USA every 4 months. The most recent releases landed on July 7, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | ConXus | Alarm Central USA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (26 ratings)](https://appshunter.io/ios/app/conxus/id891482782/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/alarm-central-usa/id1377732681/reviews)** |
| Number of ratings | **26** | 3 |
| Positive reviews | 14.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 19 MB | 11 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lochinvar Corporation](https://appshunter.io/developer/891482785) | [USA Central Station](https://appshunter.io/developer/1018950975) |

## What reviewers say

### ConXus

[App page](https://appshunter.io/ios/app/conxus/id891482782)

Remotely monitor and adjust boiler operating conditions and parameters from any smart device. Control set points, hot water, pump settings, and more for single boilers or multi-unit systems. Stay connected and in command of your heating system from anywhere.

**Highlights:** Remote boiler monitoring, Adjust boiler parameters, Receive status alerts, Control set points, Manage domestic hot water, Reprogram boiler functions

**Features:** macOS Compatibility

**In-app purchases:** none


### Alarm Central USA

[App page](https://appshunter.io/ios/app/alarm-central-usa/id1377732681)

This app allows users of alarm systems monitored by USA Central Station to securely manage their systems. Check status, view details, and control test modes. It also integrates with USAConnect for real-time alarm event management and communication with contacts.

**Highlights:** Secure login, Check system status, View contacts and site information, Manage equipment, View signal activity, Place system offline (test mode), USAConnect integration for alarm events, Chat with contacts for event resolution

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ConXus free?

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

### Is Alarm Central USA free?

Alarm Central USA is free to download, with no in-app purchases.

### Which has better reviews, ConXus or Alarm Central USA?

Alarm Central USA is rated higher. ConXus averages 2.5 out of 5 from 26 ratings, while Alarm Central USA averages 4.3 from 3 ratings.

### Do ConXus or Alarm Central USA have ads?

Neither ConXus nor Alarm Central USA shows ads.

### Which is updated more often, ConXus or Alarm Central USA?

ConXus ships an update every 2 months, and Alarm Central USA every 4 months. Most recently, ConXus was updated on July 7, 2026 and Alarm Central USA on June 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.*