FiSi vs NERD+

Master IT networking through practice, not theory. FiSi-Training: IT Practice is a hands-on learning app for networking fundamentals, designed for students and learners preparing for IT certifications such as CompTIA Network+ and CCNA-level topics. Instead of passive videos or reading-heavy courses, you solve real interactive problems and get instant feedback. --- What you practice Train across 15 structured modules covering essential IT and networking skills: * Binary, decimal, and hexadecimal conversions * IPv4 subnetting and network calculations * IPv6 subnetting and address structure * Network IDs, broadcast addresses, and host ranges * VLSM (Variable Length Subnet Masking) * Public vs private IP addressing * TCP/UDP ports and services * OSI model and protocol layers * Logic gates and digital fundamentals * Truth tables and boolean logic * Data transfer rate calculations * Bandwidth and throughput conversions --- Learn by doing Each task follows a simple loop: * Generate a new problem * Solve it interactively * Get instant correctness feedback * Reveal the correct solution if needed * Track your progress over time --- Exam simulation mode Prepare under real exam conditions: * Custom test duration (10–60 minutes) * Select specific modules or all topics * Normal or expert difficulty mode * Timed questions with scoring system * Detailed results breakdown per topic * Weakness analysis to improve faster --- Progress tracking & leaderboard * Track your performance across modules * Review past exam sessions * Identify weak areas automatically * Compare results on global leaderboards (Premium) --- Who this app is for Perfect for: * IT students and apprentices * CompTIA Network+ learners * CCNA beginners * System and network administrators in training * Anyone learning networking fundamentals --- Premium features Upgrade to unlock: * Unlimited practice questions * Full exam simulation mode * Advanced statistics and history * Global leaderboard access * Timer and expert difficulty modes --- Why this app works Networking is not learned by watching. It is learned by solving. This app turns core IT concepts into interactive problem-solving drills so you actually understand subnetting, addressing, and protocols instead of memorizing them. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

NERD+ is a focused study companion for the CompTIA Network+ (N10-009) certification exam — built to help you find your weak spots fast and turn them into strengths before exam day. Everything you need to study is completely free. No ads, no subscription, no paywall on the core experience. FEATURES (ALL FREE) - Full practice question bank covering all 5 official exam domains - Diagnostic test to instantly see where you stand, domain by domain - Quick practice, full-time mock exams, and a mistake review queue that adapts as you go - Subnet Trainer — hands-on subnetting drills, not just multiple choice - Daily streak tracking to help you build a real study habit - Clean, distraction-free design built for focused studying Want more? Performance-Based Question (PBQ) drills — hands-on matching exercises covering the hardest, highest-value exam content — are available as an optional one-time unlock. Totally optional: the free experience above is everything you need to study and pass. NERD+ is an independent study tool and is not affiliated with, endorsed by, or sponsored by CompTIA. CompTIA and Network+ are trademarks of CompTIA, Inc.