# Locked In: Prep for Linux+ — XK0-006 exam study companion > Offline study tool for CompTIA Linux+ XK0-006 exam preparation. (iPhone/iPad app by OMAR DANIEL GRAZIANO.) - Source: https://appshunter.io/ios/app/locked-in-prep-for-linux-plus/id6771484770 (this page in markdown: same URL + `.md`) - Developer: [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) - Category: Education, Reference - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 5 MB - Languages: American English - Released: 2026-05-27 - Data updated: 2026-09-01 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/locked-in-prep-for-linux-plus/id6771484770/reviews.md ## What is Locked In? Locked-In is a focused study companion for the CompTIA Linux+ XK0-006 exam. It is built for short sessions, with concise lessons, quick checks, practice, and review tools that work fully offline. WHAT'S INCLUDED - 60 lessons across all five XK0-006 domains: System Management (23%), Services and User Management (20%), Security (18%), Automation, Orchestration and Scripting (17%), and Troubleshooting (22%) - One topic per published objective, all 29 of them, so you can study against the blueprint - Coverage of the areas new to XK0-006, including virtualization with KVM and QEMU, containers with Docker and Podman, Python basics, Git, and the responsible use of AI - Visual aids for the boot process, the filesystem hierarchy, permissions, systemd, LVM, RAID, networking, SELinux, containers, and the virtualization stack - Inline quick checks at the end of every lesson - 435 unique multiple-choice practice questions with explanations, weighted to match the published domain percentages - Scenario and PBQ-style categorization, ordering, and matching activities - A 90-question, 90-minute timed mock exam with flagging, navigation, and a final review screen - Command-focused flashcards with spaced repetition - A searchable glossary covering the official CompTIA Linux+ acronym list and key concepts - Progress by domain, quiz history, study streaks, bookmarks, personal notes, weak-topic review, and an optional study plan FREE PREVIEW AND FULL UNLOCK A starter selection of lessons is free so you can evaluate the library first. A single one-time purchase unlocks the remaining lessons, the full question bank, and every study mode. There is no subscription and no account. IMPORTANT SCOPE NOTE Practice questions and PBQ-style activities are original study material, not official CompTIA exam items. The timed set is a study experience, not a reproduction of the live exam. Verify the current objectives, format, and policies directly with CompTIA. PRIVACY Study progress is stored on your device. The app requires no account, contains no advertising or third-party analytics, and does not sell or share personal data. Locked-In is not affiliated with, endorsed by, or sponsored by CompTIA, Inc. CompTIA and Linux+ are trademarks of CompTIA, Inc. Linux is a registered trademark of Linus Torvalds. Locked-In is an independent study aid and does not guarantee exam results. ## Key features - Concise lessons by exam domain - Practice questions with explanations - Timed mock exams - Command-focused flashcards - Searchable glossary - Progress tracking and study plan ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Linux+ Full Unlock | $9.99 | one-time | ## Frequently asked questions about Locked In ### What is Locked In? Locked In is a dedicated study companion designed to help users prepare for the CompTIA Linux+ XK0-006 exam. It provides lessons, practice questions, and mock exams that can be used offline. ### How does Locked In help me study for the Linux+ exam? Locked In covers all five XK0-006 domains with 60 lessons, 435 practice questions, flashcards, and a timed mock exam. It focuses on objectives, new topics like virtualization and containers, and includes visual aids. ### Is Locked In free to use? A selection of lessons is available for free, allowing you to evaluate the content. A single one-time purchase unlocks the full question bank, all study modes, and remaining lessons. ### Does Locked In have ads? No, Locked In does not contain any advertising. The app is designed to provide an uninterrupted study experience. ### Can I use Locked In offline? Yes, Locked In is built to work fully offline. All lessons, practice questions, and study tools are available without an internet connection once downloaded. ### How often is Locked In updated? The latest version, 2.2, was released on August 27, 2026. Updates typically include content refinements and feature improvements to align with exam objectives. ### What devices does Locked In support? Locked In is available on iOS devices, specifically iPhones and iPads. It is rated for ages 4 and up. ### Does Locked In guarantee I will pass the Linux+ exam? Locked In is an independent study aid and does not guarantee exam results. It is designed to provide comprehensive preparation material to help users feel confident for the exam. ## Version history (last 5 releases) ### 2.2 — 2026-08-27 Practice questions have been rewritten so the correct answer can no longer be identified from its shape. Options within a question now share the same form, length and structure, so the right answer has to be recognised rather than guessed. Question wording and explanations were reviewed alongside it. ### 2.1 — 2026-08-16 Squashed bugs. Enjoy! ### 2.0 — 2026-08-03 • Reframed XK0-005 throughout the app as a retired legacy reference and added clear guidance that current candidates should use XK0-006 materials. • Clarified timed practice and PBQ-style activities as independent knowledge review, not official exam content or a certification-readiness predictor. • Improved purchase, restore, and entitlement-state handling. • Improved progress persistence, study planning, and flashcard review behavior. • Corrected content and fixed reliability issues across core study screens. ### 1.0.1 — 2026-06-01 Bug fixes and performance improvements. ### 1.0 — 2026-05-28 No release notes. ## More apps by OMAR DANIEL GRAZIANO - [Cycle Cipher](https://appshunter.io/ios/app/cycle-cipher/id6767546105) - [CivBites](https://appshunter.io/ios/app/civbites/id6767999584) - [Decanon](https://appshunter.io/ios/app/decanon/id6768711973) - [Tanksmith](https://appshunter.io/ios/app/tanksmith/id6769517856) - [Roomprint](https://appshunter.io/ios/app/roomprint/id6769752243) - [Liminal: Learn Philosophy](https://appshunter.io/ios/app/liminal-learn-philosophy/id6770075835) All apps by OMAR DANIEL GRAZIANO: https://appshunter.io/developer/1896485759 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*