# Master Locksmiths Events vs Security & Fire Security Expo

The clearest difference is update cadence: Security & Fire Security Expo at monthly against Master Locksmiths Events's every 4 months. Master Locksmiths Events's advantage is iOS requirement (15.1 vs 17.0). 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.

Master Locksmiths Events ships an update every 4 months, Security & Fire Security Expo monthly. Both last shipped on October 8, 2026.

## The numbers

| Metric | Master Locksmiths Events | Security & Fire Security Expo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 45 MB | 60 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Master Locksmiths Association of Australasia Limited](https://appshunter.io/developer/1870151380) | [Diversified Communications Australia](https://appshunter.io/developer/1350367218) |

## What reviewers say

### Master Locksmiths Events

[App page](https://appshunter.io/ios/app/master-locksmiths-events/id6757993782)

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

**In-app purchases:** none


### Security & Fire Security Expo

[App page](https://appshunter.io/ios/app/security-and-fire-security-expo/id6789022136)

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

**In-app purchases:** none


## Frequently asked questions

### Is Master Locksmiths Events free?

Master Locksmiths Events is free to download, with no in-app purchases.

### Is Security & Fire Security Expo free?

Security & Fire Security Expo is free to download, with no in-app purchases.

### Do Master Locksmiths Events or Security & Fire Security Expo have ads?

Neither Master Locksmiths Events nor Security & Fire Security Expo shows ads.

### Which is updated more often, Master Locksmiths Events or Security & Fire Security Expo?

Master Locksmiths Events ships an update every 4 months, and Security & Fire Security Expo monthly. Most recently, Master Locksmiths Events was updated on October 8, 2026 and Security & Fire Security Expo on October 8, 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.*