# secure@home vs Concentric Neutral Calculator

The clearest difference is update cadence: Concentric Neutral Calculator at every 7 months against secure@home's every 33 months. secure@home's advantage is iOS requirement (9.0 vs 16.6). On price, ads, 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.

secure@home ships an update every 33 months, Concentric Neutral Calculator every 7 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | secure@home | Concentric Neutral Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 42 MB | 5 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ABB Information Systems AG](https://appshunter.io/developer/1026885389) | [Southwire Company](https://appshunter.io/developer/440338423) |

## What reviewers say

### secure@home

[App page](https://appshunter.io/ios/app/securehome/id1138720337)

This utility app generates and sends SMS commands to specific home automation units. It allows for initial setup, creation of new installations, and selection of favorite commands for quick access. Users can easily send commands by pressing on the desired option.

**Highlights:** SMS generation for home units, Initial settings and installation creation, Favorite command selection, Direct command sending via SMS

**In-app purchases:** none


### Concentric Neutral Calculator

[App page](https://appshunter.io/ios/app/concentric-neutral-calculator/id6478878772)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is secure@home free?

secure@home is free to download, with no in-app purchases.

### Is Concentric Neutral Calculator free?

Concentric Neutral Calculator is free to download, with no in-app purchases.

### Do secure@home or Concentric Neutral Calculator have ads?

Neither secure@home nor Concentric Neutral Calculator shows ads.

### Which is updated more often, secure@home or Concentric Neutral Calculator?

secure@home ships an update every 33 months, and Concentric Neutral Calculator every 7 months. Most recently, secure@home was updated on October 7, 2026 and Concentric Neutral Calculator on October 6, 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.*