LetsDefend vs Locked In

Start learning the art of cybersecurity with LetsDefend, the leading brand designed to elevate your expertise on the go! Developed by cybersecurity experts, LetsDefend offers comprehensive interactive courses and hands-on simulations, empowering you to effectively protect against digital threats. Join a vibrant community of cybersecurity learners worldwide, enhancing your skills, boosting your career, and learning to safeguard against cyber threats through LetsDefend’s immersive, user-friendly courses. Ready to kick-start your cybersecurity journey? What LetsDefend Offers You • In-Depth Cybersecurity Modules – Immerse yourself in detailed, structured courses tailored for aspiring and experienced cybersecurity professionals. Get hands-on with real-world threat scenarios and simulations for practical learning. • Real-World Threat Simulations – Build confidence and skills with simulations that mirror real-world cyber-attacks. Begin right away with practical exercises designed to solidify your understanding from the get-go. • Tools and Techniques for Threat Detection – Learn about and use the latest tools for identifying and analyzing cybersecurity threats. LetsDefend ensures you’re up to speed with the skills essential for modern cybersecurity practices. • Community and Expert Support – Stuck on a problem? Access prompt support from our cybersecurity community or consult our in-app virtual assistant for expert guidance on any challenge you face. • Customizable Learning Path – Tailor-made to fit your pace and expertise, LetsDefend offers a personalized learning experience that aligns with your career goals and learning preferences. Progress through lessons that adapt to your journey. • Learn Anytime, Anywhere – Take your cybersecurity training with you wherever you go. With LetsDefend’s mobile learning platform, keep expanding your knowledge and skills no matter where you are. • Science-Driven Learning Methodology – Our educational approach combines theoretical instruction with practical application, maximizing retention and ensuring skills are cemented through real-world application. Why Cyber Learners Love LetsDefend • Engaging, practice-based cybersecurity lessons • A straightforward, intuitive learning process • Diverse array of focused cybersecurity topics • Perfectly suited for newcomers and professionals Contact Us For questions or feedback, feel free to reach out to us at support@letsdefend.io

Locked In is a bite-sized study companion for the CompTIA A+ certification, covering both Core 1 (220-1201) and Core 2 (220-1202). It suits people who study in 10-minute windows on the train or at lunch: every lesson is short and ends with a quick check so you know what stuck. The app follows the current V15 exams (220-1201 and 220-1202), which CompTIA launched on March 25, 2025. CompTIA lists the retirement as usually three years after launch, estimated 2028. WHAT'S INSIDE • Both A+ exams covered: Core 1 (220-1201) and Core 2 (220-1202) • All 9 domains: Mobile Devices, Networking, Hardware, Virtualization & Cloud, Hardware/Network Troubleshooting, Operating Systems, Security, Software Troubleshooting, and Operational Procedures • Visual diagrams for the concepts that need one (OSI model, RAID levels, laser imaging process, hypervisor types, defense in depth, and more) • A quick check at the end of each of the 162 lessons • Practice bank of 145 multiple-choice questions, organized by domain and written separately from the lesson quick checks • 16 performance-based practice activities (PBQs): tap to categorize, order, and match • A 90-question mixed Core 1 + Core 2 timed practice mode with flag-for-review and a final review screen (a study tool, not a simulation of either separate exam) • Flashcard deck of 82 must-know terms with spaced repetition • Searchable glossary of 75 key terms and acronyms (45 free; the 30 that repeat a paid flashcard open with the unlock) • Progress tracking, streaks, bookmarks, and personal notes • Spaced review that brings back the questions and cards you keep missing WHAT'S FREE, WHAT'S PAID Free to download and study, with no account and no time limit: • 14 of the 162 lessons: the six lessons of Core 1 Domain 1's first topic, plus the first lesson of every domain • Quizzes of up to 10 questions per session, drawn from the whole 145-question bank • A 2-activity PBQ preview • The Core 1 Domain 1 flashcards • 45 of the 75 glossary terms • Progress tracking, streaks, bookmarks, and notes One non-consumable in-app purchase (Locked In! A+ Unlock, no subscription) adds: • The remaining 148 lessons, for all 162 across 56 topics and both cores • Quiz sessions of 15, 25 and 50 questions (25 and 50 mix all domains; no single domain holds that many) • All 16 performance-based practice activities • All 82 flashcards, plus the 30 glossary definitions that repeat a paid card • The full 90-question, 90-minute cross-core timed practice mode WHO IT'S FOR • Career changers entering IT support and help-desk roles • 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 • Bundled lessons and practice work offline with no account, tracking or ads. App Store product loading, buying, and restoring need a network connection. • One-time unlock, no subscription • Written and supported by one independent developer 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 A+® are registered trademarks of CompTIA, Inc.