# Linux & Security Essentials vs IaC Associate 004 Prep

The clearest difference is update cadence: Linux & Security Essentials at every 6 days against IaC Associate 004 Prep's monthly. Linux & Security Essentials also leads on 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. Linux & Security Essentials sells 8 one-off in-app purchases and IaC Associate 004 Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Linux & Security Essentials ships an update every 6 days, IaC Associate 004 Prep monthly. The most recent releases landed on November 13, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Linux & Security Essentials | IaC Associate 004 Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Size | 266 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) | [Shunya Iwasaki](https://appshunter.io/developer/1796095304) |

## What reviewers say

### Linux & Security Essentials

[App page](https://appshunter.io/ios/app/linux-and-security-essentials/id6785109684)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LPI LPIC-1 102-500 Exa 추가구매 할인 | $1.69 | one-time |
| LPI LPIC-1 101-500 Exa 추가구매 할인 | $1.69 | one-time |
| LPI Linux Essentials 0 추가구매 할인 | $2.49 | one-time |
| LPI Security Essentials 할인 | $2.49 | one-time |
| LPI LPIC-1 101-500 Exam Prep | $3.49 | one-time |
| LPI LPIC-1 102-500 Exam Prep | $3.49 | one-time |
| LPI Security Essentials 이용권 | $4.99 | one-time |
| Lifetime Access | $4.99 | one-time |


### IaC Associate 004 Prep

[App page](https://appshunter.io/ios/app/iac-associate-004-prep/id6794236813)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $24.99 | one-time |


## Frequently asked questions

### Is Linux & Security Essentials free?

Linux & Security Essentials is free to download, with in-app purchases available.

### Is IaC Associate 004 Prep free?

IaC Associate 004 Prep is free to download, with in-app purchases available.

### Do Linux & Security Essentials or IaC Associate 004 Prep have ads?

Neither Linux & Security Essentials nor IaC Associate 004 Prep shows ads.

### Which is updated more often, Linux & Security Essentials or IaC Associate 004 Prep?

Linux & Security Essentials ships an update every 6 days, and IaC Associate 004 Prep monthly. Most recently, Linux & Security Essentials was updated on November 13, 2026 and IaC Associate 004 Prep on November 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.*