Raid Analyser vs Signal Deck

RAID Analyser, a comprehensive training and planning tool designed for recreational divers. Whether you're new to enriched air or an experienced technical diver, this app provides everything you need to dive safely with nitrox. INTERACTIVE NITROX ANALYZER SIMULATOR Practice using a nitrox analyzer in a risk-free virtual environment. Learn proper calibration techniques, gas analysis procedures, and equipment operation before touching the real thing. The realistic simulator teaches you to: • Calibrate your analyzer correctly • Analyze different gas mixtures (EAN28, EAN32, EAN36, EAN40) • Understand analyzer types and their differences • Master proper inlet and dial adjustments • MOD Calculator - Calculate Maximum Operating Depth based on oxygen percentage and PPO2 limits • EAD Calculator - Determine Equivalent Air Depth for nitrogen loading • Support for both metric and imperial units COMPREHENSIVE LEARNING CENTER Access professional-quality educational content covering: • What is Nitrox and how it works • Common gas mixtures and their applications • Benefits of nitrox diving • Oxygen toxicity awareness and prevention • MOD calculations explained • Safety procedures and best practices • Analyzer types and maintenance • Gas analysis procedures • Equipment care guidelines • Certification requirements • Gas laws and physics fundamentals • Dive planning strategies FEATURES - Hands-on nitrox analyzer simulation - Real-time gas analysis practice - Professional dive calculators - Multi-language support - Intuitive, user-friendly interface - Offline access to all content

SignalDeck is the essential training companion for mariners, naval cadets, offshore sailors, and maritime enthusiasts who want to master the International Code of Signals (ICS) flag system — the visual language of the sea. Study the Full ICS Flag Set Browse all 36 ICS flags — the complete 26-letter alphabet (Alpha through Zulu) plus 10 numeral pennants (0 through 9) — presented as beautifully rendered flashcards. Each card shows the flag's name, NATO phonetic pronunciation, and its official maritime meaning. Swipe through at your own pace, filter by letters or numerals, or shuffle the deck to keep every session fresh. Three Drill Modes to Test Your Knowledge Visual ID: A flag appears on screen. Can you name it before time runs out? Tap the correct NATO name from four options and build your streak as the pace intensifies. Flag Bag: The challenge flips — you're given a NATO letter or name and must pick the correct flag from four choices. Perfect for cementing the visual recognition you've built in study mode. Flag IQ: A memory match game with a nautical twist. Flip face-down cards on a grid to pair each flag image with its NATO letter or official ICS meaning. Choose Easy (4×4, letter cards), Medium (4×5, meaning cards), or Hard (6×6, mixed) — and earn your rating from Bridge Apprentice to Master Chief Signalman based on how few mismatches you make. Built for Serious Learners Animated flags rendered with authentic nautical proportions and a sea-breeze waving effect Streak tracking with escalating visual feedback as your streak climbs "Needs Practice" summary after every drill — instantly see which flags to revisit Fleet Readiness Heatmap in your drill log — colour-coded badges show your mastery level for every flag at a glance Drill log that records every session so you can track progress over time Timed pressure in Visual ID and Flag Bag mirrors the urgency of real-world flag communication A Living Reference at Sea and Ashore Whether you're preparing for a maritime exam, brushing up before an offshore passage, training cadets, or simply fascinated by the tradition of visual signaling, SignalDeck gives you a focused, distraction-free environment to drill the flags that matter. Free to Start — Go Premium for Unlimited Access New users get free drill sessions to explore the app. Watch a short ad to unlock another round, or upgrade to Premium for unlimited drills, no ads, and full access to every mode and difficulty tier. The sea doesn't wait. Neither should your training.