# Weapons Detection System vs PrevailHQ

The clearest difference is update cadence: PrevailHQ at daily against Weapons Detection System's weekly. PrevailHQ also leads on iOS requirement (13.0 vs 15.0). 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.

Weapons Detection System ships an update weekly, PrevailHQ daily. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Weapons Detection System | PrevailHQ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/weapons-detection-system/id1622681774/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free | — |
| Size | 148 MB | 16 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Athena Security](https://appshunter.io/developer/1494675502) | [Clear To Go, Inc.](https://appshunter.io/developer/1512016491) |

## What reviewers say

### Weapons Detection System

[App page](https://appshunter.io/ios/app/weapons-detection-system/id1622681774)

This system provides remote notifications and accountability for walk-through metal detectors, helping organizations maintain security and compliance. It assists officers by acting as an extra layer of vigilance at entryways, ensuring adherence to best practices and preventing unauthorized items from entering facilities.

**Highlights:** Remote notifications, Accountability tracking, Incident response forms, Security officer check-in, Automated paperwork, Guest item reminders, Secondary screening AI

**Features:** macOS Compatibility

**In-app purchases:** none


### PrevailHQ

[App page](https://appshunter.io/ios/app/prevailhq/id6471518454)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Weapons Detection System free?

Weapons Detection System is free to download, with no in-app purchases.

### Is PrevailHQ free?

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

### Do Weapons Detection System or PrevailHQ have ads?

Neither Weapons Detection System nor PrevailHQ shows ads.

### Which is updated more often, Weapons Detection System or PrevailHQ?

Weapons Detection System ships an update weekly, and PrevailHQ daily. Most recently, Weapons Detection System was updated on October 5, 2026 and PrevailHQ on October 7, 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.*