# CompTIA Linux+ XK0 vs Locked In

The clearest difference is rating: Locked In at 5.0 against CompTIA Linux+ XK0's 4.0. Locked In also leads on update cadence (every 2 weeks vs every 7 months). CompTIA Linux+ XK0's advantage is iOS requirement (15.1 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. CompTIA Linux+ XK0 sells 9 in-app purchases, starting at $8.99 per 7 days and Locked In sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Locked In holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

CompTIA Linux+ XK0 ships an update every 7 months, Locked In every 2 weeks. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CompTIA Linux+ XK0 | Locked In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/comptia-linux-plus-xk0-006-prep/id6472489989/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/locked-in-prep-for-linux-plus/id6771484770/reviews)** |
| Number of ratings | **2** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 53 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) | [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) |

## What reviewers say

### CompTIA Linux+ XK0

[App page](https://appshunter.io/ios/app/comptia-linux-plus-xk0-006-prep/id6472489989)

Prepare for the CompTIA Linux+ certification exam with practice questions, realistic simulations, and detailed explanations. Tailor your study with focused plans and track your progress to achieve success.

**Highlights:** Expertly crafted practice questions, Realistic exam simulations, Detailed answer explanations, Focused and flexible study plans, Progress tracking and analytics, Regular content updates, Interactive learning tools

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Linux+ Weekly Subscription | $8.99 | per 7 days |
| Linux+ Monthly Full Access | $24.99 | per month |
| Linux+ Monthly Subscription | $24.99 | per month |
| Linux Quarterly Full Access | $55.99 | per 3 months |
| Linux Quarterly Full Access | $55.99 | per 3 months |
| Linux Semiannual Full Access | $75.99 | per 6 months |
| Linux Semiannual Full Access | $79.99 | per 6 months |
| Linux Annual Full Access | $109.99 | per year |
| Linux Annual Full Access | $119.99 | per year |


### Locked In

[App page](https://appshunter.io/ios/app/locked-in-prep-for-linux-plus/id6771484770)

Prepare for the CompTIA Linux+ XK0-006 exam with this offline study companion. It offers concise lessons, practice questions, flashcards, and mock exams covering all exam domains. Track your progress and review weak topics to ensure readiness.

**Highlights:** Concise lessons by exam domain, Practice questions with explanations, Timed mock exams, Command-focused flashcards, Searchable glossary, Progress tracking and study plan

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Linux+ Full Unlock | $9.99 | one-time |


## Frequently asked questions

### Is CompTIA Linux+ XK0 free?

CompTIA Linux+ XK0 is free to download, with in-app purchases available.

### Is Locked In free?

Locked In is free to download, with in-app purchases available.

### Which has better reviews, CompTIA Linux+ XK0 or Locked In?

Locked In is rated higher. CompTIA Linux+ XK0 averages 4.0 out of 5 from 2 ratings, while Locked In averages 5.0 from 1 ratings.

### Do CompTIA Linux+ XK0 or Locked In have ads?

Neither CompTIA Linux+ XK0 nor Locked In shows ads.

### Which is updated more often, CompTIA Linux+ XK0 or Locked In?

CompTIA Linux+ XK0 ships an update every 7 months, and Locked In every 2 weeks. Most recently, CompTIA Linux+ XK0 was updated on October 6, 2026 and Locked In on October 2, 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.*