FiSi vs Learn Binary

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/

Finally understand binary and hex — by doing, not memorising. Learn Binary turns number-base conversion into fast, satisfying drills. See a number, build the answer on a tappable bit row or a clean keypad, and get an instant verdict with the place-value breakdown behind it. It's built around how you actually learn: a level climb, an ~80% mastery gate, and a three-minute daily habit. WHAT'S INSIDE - The drill — convert decimal ⇄ binary ⇄ hex, both directions. Tap the bits or type the digits, confirm, and see exactly why the answer is what it is. - The nibble block — the standout: see how 0x61 = 0110 0001 = 97, with hex sat over colour-coded 4-bit nibbles. This is the trick that makes hex click. - A level climb — one level per bit, from the first switch up to the full byte (the 256 Club) and beyond. Clear a level test to unlock the next. - Two's-complement — read and write signed bytes, with the sign-bit reveal. - Bitwise ops — AND, OR and XOR, worked one column at a time. - Byte Speed Run — an optional 60-second timed challenge once you've earned it. - Daily goal + streak — a gentle habit, with a streak freeze so one missed day doesn't wipe your progress. - Explore — scrub a number and watch decimal, binary and hex move together. BUILT RIGHT - Fully offline — no account, no sign-up, no tracking required. - A clean, friendly light design in apricot and teal. Remove ads with a single one-time purchase — it removes the interstitial ads, and it's the only thing we'll ever ask you to buy.