# McGrath Concrete vs Offgrid Tower Security

The clearest difference is update cadence: Offgrid Tower Security at monthly against McGrath Concrete's every 6 months. 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.

McGrath Concrete ships an update every 6 months, Offgrid Tower Security monthly. Both last shipped on September 30, 2026.

## The numbers

| Metric | McGrath Concrete | Offgrid Tower Security |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Size | 46 MB | 48 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Loop 4 Solutions](https://appshunter.io/developer/1418729643) | [Tower Security](https://appshunter.io/developer/1825885565) |

## What reviewers say

### McGrath Concrete

[App page](https://appshunter.io/ios/app/mcgrath-concrete/id6457063100)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Offgrid Tower Security

[App page](https://appshunter.io/ios/app/offgrid-tower-security/id6748463303)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is McGrath Concrete free?

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

### Is Offgrid Tower Security free?

Offgrid Tower Security is free to download, with no in-app purchases.

### Do McGrath Concrete or Offgrid Tower Security have ads?

Neither McGrath Concrete nor Offgrid Tower Security shows ads.

### Which is updated more often, McGrath Concrete or Offgrid Tower Security?

McGrath Concrete ships an update every 6 months, and Offgrid Tower Security monthly. Most recently, McGrath Concrete was updated on September 30, 2026 and Offgrid Tower Security on September 30, 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.*