# Locked In: Prep for CySA+ — CS0-004 study companion > Cybersecurity exam prep app with bite-sized lessons and practice questions. (iPhone/iPad app by OMAR DANIEL GRAZIANO.) - Source: https://appshunter.io/ios/app/locked-in-prep-for-cysa-plus/id6770587466 (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: 2026-05-20 - Data updated: 2026-09-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/locked-in-prep-for-cysa-plus/id6770587466/reviews.md ## What is Locked In? Locked-In is an independent study companion for the CySA+ CS0-004 exam. It is designed for short, focused study sessions and works without an account, ads, analytics, or third-party tracking. STUDY CONTENT • 91 concise lessons across all 15 CS0-004 objective headings in four domains • 91 inline quick checks, one at the end of every lesson • Visual explanations for selected concepts including security operations, threat intelligence, vulnerability management, incident response, and reporting • 100 flashcards with optional spaced review • A searchable glossary with 137 selected terms and acronyms • Search, progress tracking, study streaks, bookmarks, and personal notes PRACTICE • 121 original multiple-choice questions organized by domain • 20 tap-driven PBQ-style activities for categorizing, ordering, and matching practice • An 85-question, 165-minute multiple-choice Timed Practice mode with checkpointing, flag-for-review, a navigation grid, and results review • A weak-spot review queue that reschedules missed questions and flashcards Timed Practice and the PBQ-style activities are separate, original app content. They are not official CompTIA questions, a reproduced exam blueprint, or an exam simulation. The app's 80% practice target is not a CompTIA scaled score, passing prediction, or claim about the official passing standard. FREE TO TRY The free tier includes 16 complete lessons, a curated 10-question quiz sampler, 30 Domain 1 flashcards, two PBQ-style preview activities, the complete 137-term glossary, and on-device study tools for included content. ONE-TIME FULL UNLOCK The non-consumable Locked-In Full Unlock opens all 91 lessons, quiz access to the full 121-question bank, all 20 PBQ-style activities, all 100 flashcards, and the 85-question Timed Practice mode. There is no subscription. OFFLINE AND PRIVATE Lessons, questions, activities, flashcards, glossary content, notes, and progress are bundled and stored on-device. Product loading, buying, and restoring use Apple's App Store services and require a network connection. DISCLAIMER Not affiliated with, endorsed by, or sponsored by CompTIA. CompTIA® and CySA+® are registered trademarks of CompTIA, Inc. Locked-In is an independent study aid. Always verify current exam policies and objectives with CompTIA. ## Key features - Bite-sized lessons for CS0-003 exam domains - Visual diagrams for key concepts - Inline quick-checks and practice questions - Performance-based question simulations - Timed mock exams - Spaced repetition flashcards - Searchable glossary and progress tracking ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Locked-In Full Unlock | $9.99 | one-time | ## Frequently asked questions about Locked In ### What is Locked In? Locked In is a study companion designed to help users prepare for the CompTIA Cybersecurity Analyst (CySA+) CS0-003 exam. It offers bite-sized lessons, practice questions, and mock exams to facilitate learning in short study sessions. ### Does Locked In work offline? Yes, Locked In works fully offline, meaning you do not need an internet connection to access its study materials. This makes it convenient for studying on the go without worrying about data usage. ### How does Locked In track progress? Locked In provides progress tracking, streaks, bookmarks, and personal notes to help users monitor their learning journey. It also features a weak-spot review that highlights topics you are struggling with. ### What types of practice questions are included in Locked In? Locked In includes over 100 practice questions organized by domain and difficulty, as well as performance-based questions (PBQs) such as drag-and-drop, matching, and ordering. It also offers a full timed mock exam. ### Is Locked In suitable for beginners? While designed for those preparing for the CySA+ exam, its bite-sized lesson format and visual aids can be beneficial for anyone looking to learn cybersecurity concepts in focused increments. It's ideal for those who prefer short study sessions over long lectures. ### How often is Locked In updated? The app was last updated on August 3, 2026, with version 2.0. While specific update frequency isn't detailed, this indicates ongoing development and support for the application. ### What devices is Locked In available on? Locked In is available on iPhone and iPad devices. The app is rated for ages 17+. ### Does Locked In have ads? No, Locked In is ad-free. The developer emphasizes that the app works fully offline and contains no advertisements, ensuring an uninterrupted study experience. ## Version history (last 5 releases) ### 2.3 — 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. ### 2.2 — 2026-08-15 Squashed bugs. Enjoy! ### 2.1 — 2026-08-11 Version 2.1 rebuilds the study course around the current CySA+ CS0-004 objectives and improves reliability, accessibility, and practice-session behavior: • Updated all four domains to the 15 current CS0-004 objective headings and 34% / 26% / 24% / 16% domain weights. • Expanded the course to 91 lessons with 91 quick checks, 121 original multiple-choice questions, 20 PBQ-style activities, 100 flashcards, and a 137-term glossary. • Reframed the 85-question, 165-minute activity as original multiple-choice Timed Practice, separate from PBQ-style practice and not an official exam simulation. • Improved Full Unlock purchasing, entitlement refresh, restoration, and locked-content routing. • Made timed-practice checkpoints, results recording, review scheduling, progress, bookmarks, notes, streaks, and persistence recovery more reliable. • Improved VoiceOver labels, larger-text layouts, adaptive contrast, dark appearance, and reduced-motion behavior. ### 2.0 — 2026-08-03 Version 2.0 is a major refinement of Locked-In: • Improved layouts across iPhone and iPad • Clearer navigation and study-progress feedback • Refined lessons, quizzes, flashcards, and practice flows • Accessibility and readability improvements • Reliability and performance fixes throughout ### 1.0.1 — 2026-06-01 Bug fixes and performance improvements. ## 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.*