# Security CPO vs Guardian Lone Worker

The clearest difference is price: Guardian Lone Worker at Free against Security CPO's $1.99. Guardian Lone Worker also leads on update cadence (every 2 months vs every 6 months). Security CPO's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Guardian Lone Worker is free to download; Security CPO costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Security CPO ships an update every 6 months, Guardian Lone Worker every 2 months. The most recent releases landed on August 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Security CPO | Guardian Lone Worker |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 32 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [N Howe](https://appshunter.io/developer/662757460) | [Corrin Data And Systems Ltd](https://appshunter.io/developer/1651469962) |

## What reviewers say

### Security CPO

[App page](https://appshunter.io/ios/app/security-cpo/id1294645271)

This app provides resources for individuals in or aspiring to join the security industry. It offers knowledge expansion, skill enhancement, and career development support, including networking information, packing lists, and counter-terrorism guidance.

**Highlights:** Networking Information, Task-specific Packing Lists, Job Checklists, Mapping Support with Emergency Services, Counter-Terrorism Guidance, CV Preparation, Work Search Advice

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

**In-app purchases:** none


### Guardian Lone Worker

[App page](https://appshunter.io/ios/app/guardian-lone-worker/id6445913167)

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

**In-app purchases:** none


## Frequently asked questions

### Is Security CPO free?

Security CPO costs $1.99, with no in-app purchases.

### Is Guardian Lone Worker free?

Guardian Lone Worker is free to download, with no in-app purchases.

### Do Security CPO or Guardian Lone Worker have ads?

Neither Security CPO nor Guardian Lone Worker shows ads.

### Which is updated more often, Security CPO or Guardian Lone Worker?

Security CPO ships an update every 6 months, and Guardian Lone Worker every 2 months. Most recently, Security CPO was updated on August 24, 2026 and Guardian Lone Worker on September 9, 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.*