Sea Shell Identifier vs quant blitz

Identify seashells from a photo and turn your beach finds into a personal collection. ShellLens combines an AI shell identifier, a seashell guide, and collection folders to help you discover what you found and learn more about it. Whether you're beachcombing on vacation, sorting shells at home, or exploring marine life with your family, start with a photo and follow your curiosity. IDENTIFY SHELLS FROM PHOTOS Take a picture or choose one from your library. ShellLens' updated AI model analyzes the shell's visible features and suggests an identification, with common and scientific names when a match is found. GET TO KNOW YOUR FIND Explore identifying features, taxonomy, habitats, geographic distribution, and rarity where available. Learn what makes a shell distinctive and how it differs from similar species. BUILD YOUR SHELL COLLECTION Keep your favorite finds together in a visual collection. Create folders for different beaches, trips, or shell types, add folder notes, and choose cover photos. Give every beach day's discoveries a place of their own. EXPLORE WIKIPEDIA AND SPECIES REFERENCES Go deeper with Wikipedia articles and photographs where available. Explore additional names, classification, and recorded regions from the World Register of Marine Species, with links to the original sources. TAKE A SECOND LOOK Think your shell could be something else? For eligible results, choose a suggested alternative or enter the name you suspect and ask the AI to reconsider the photo. When the image doesn't show enough detail, photo guidance helps you prepare another shot. REVISIT YOUR DISCOVERIES Browse your identification history and saved collection. Previously saved shell photos and identification details remain available offline; new identifications and online reference content require an internet connection. From your first beach find to a growing interest in conchology—the study of shells—ShellLens helps you keep exploring. Download ShellLens and discover the story behind your next shell. AI identifications are suggestions and may be incorrect. Available details and reference material vary by result. SUBSCRIPTION INFORMATION - Choose from Weekly, Yearly plans - Charges applied to your iTunes Account at purchase - Auto-renewal unless disabled 24 hours before expiration - Accounts charged for renewal 24 hours prior to period end at the rate chosen - Manage auto-renewals in Account Settings - Active subscriptions last for their full term - No refunds for active subscription periods - Unused trial time forfeited with subscription purchase Privacy Policy: https://sites.google.com/view/shellid/privacy-policy Terms of Service: https://sites.google.com/view/shellid/terms-conditions

Prep for quant interviews in a few minutes a day, for trading and quant developer roles. quant blitz turns the questions trading firms ask into short multiple-choice lessons, with an explanation after every answer: over 1,400 questions, plus mental math speed drills. Pick your role, then work through a path that ramps up from the basics. TRADING • Mental math: timed speed drills with typed answers, Zetamac style, from quick sums to decimals, percentages and sequences. Plus test conditions: 80 problems in 8 minutes. • Probability: counting, Bayes, expectation, variance and the classic distributions. • Brainteasers: dice, cards and urns, waiting times and optimal stopping. • Betting and games: expected value, Kelly sizing and game theory. • Market making: quotes and spreads, making a market, adverse selection and trading games. • Options: payoffs and put–call parity, pricing bounds, the Greeks and volatility. DEV • C++: core language, memory and object lifetime, templates, the STL, concurrency and memory ordering, operating systems, and low-latency performance. • Python: the data model, data structures and their costs, functions and OOP, the GIL and concurrency, CPython internals, NumPy and pandas, and operating systems. LEARN IN A WAY THAT STICKS • Lessons of 8–10 questions that ramp up in difficulty • Missed questions come back until you get them right, then return in spaced reviews • Take the placement test to start at your level, or jump ahead with a checkpoint • Streaks, a daily XP goal and an optional reminder keep you consistent BLITZ MODE Answer against the clock for bonus XP: 30 seconds for concept questions, 60 for the rest. PREMIUM The full path and the speed drills are free; lessons are limited by hearts. Premium adds unlimited hearts, blitz mode, jumping straight to any section, full stats (mastery by section, accuracy by question type and 30 days of XP) and a searchable question bank. Choose yearly, with a 3-day free trial, monthly, or a one-time lifetime purchase. Yearly and monthly Premium are auto-renewing subscriptions. Payment is charged to your Apple Account at confirmation of purchase, or when a free trial ends, and the subscription renews at the end of each period unless you cancel at least 24 hours before it ends. Manage or cancel it in your App Store account settings. Lifetime is a one-time purchase and doesn't renew. Privacy policy: https://lukazsdev.github.io/quantblitz/privacy/ Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/