Locked In: Prep for CySA+

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.