Locked In: Prep for PenTest+

Locked-In is a bite-sized study companion for the CompTIA PenTest+ (PT0-003) exam. Built for people who study in 10-minute windows on the train, on lunch, or between meetings — every lesson is short, focused, and ends with a quick-check so you know what stuck. WHAT'S INSIDE • All 5 PT0-003 exam domains, broken into bite-sized lessons • Visual diagrams for every key concept (pentest lifecycle, Cyber Kill Chain, MITRE ATT&CK, recon flows, and more) • Inline quick-checks at the end of each lesson • A 500+ question practice bank, organized by domain and difficulty • Performance-based questions (PBQs) — drag-and-drop, matching, and ordering • A full 90-question, 90-minute timed mock exam with flag-for-review and a final review screen • Flashcard deck of must-know penetration testing terms with spaced repetition • Searchable glossary covering every acronym, tool, and technique on test day • Progress tracking, streaks, bookmarks, and personal notes • Weak-spot review that surfaces the topics you keep missing WHO IT'S FOR • Career changers moving into offensive security or red teaming • Security+ holders ready to level up to PenTest+ • Students supplementing a course or boot camp • Professionals refreshing before a recertification window • Anyone who learns better in short, focused sessions than long lectures WHY LOCKED-IN • Works fully offline — no account, no tracking, no ads • One-time unlock, no subscription • Built by an indie developer, not a content mill PRIVACY Locked-In stores your progress on-device. No analytics, no third-party SDKs, no data sold or shared. DISCLAIMER Not affiliated with, endorsed by, or sponsored by CompTIA. CompTIA® and PenTest+® are registered trademarks of CompTIA, Inc.