Widget Vocabulary vs Kerotakis

EXPAND YOUR VOCABULARY WITHOUT CHANGING YOUR ROUTINE Widget Vocabulary helps you learn new words every day directly from your Lock Screen and Home Screen. No extra study sessions, no complicated lessons. Simply glance at your phone and learn naturally throughout the day. Whether you're preparing for exams, improving your English, or building a stronger vocabulary, Widget Vocabulary makes learning effortless. LOCK SCREEN VOCABULARY LEARNING Turn your Lock Screen into a powerful learning tool. New words automatically appear throughout the day, helping you build vocabulary during moments you already spend looking at your phone. Learn consistently without opening an app or setting aside extra study time. CUSTOMIZABLE HOME SCREEN WIDGETS Personalize your Home Screen with beautiful vocabulary widgets. Choose exactly what you want to learn and customize your experience to match your goals. Your widgets update automatically with fresh words and definitions. LEARN AT YOUR LEVEL From A1 beginners to C2 advanced learners, Widget Vocabulary adapts to your current level. Choose vocabulary that matches your skills and progress naturally at your own pace. Whether you're just getting started or already fluent, you'll always find the right words to learn next. EXPLORE THOUSANDS OF FLASHCARDS Browse through thousands of vocabulary flashcards and discover: • Word meanings • Example sentences • Real-life usage • Pronunciations • Related vocabulary Build a deeper understanding of every word you learn. TEST YOUR KNOWLEDGE Learning is only the first step. Challenge yourself with interactive quizzes and over 1,000 levels designed to help you review, practice, and retain new vocabulary. Track your progress and see how much you've learned over time. EXAM VOCABULARY PACKS Prepare for important exams with specialized vocabulary collections, including: • IELTS • TOEFL • GRE • SAT Focus on the words that matter most for your academic and professional goals. LEARN MULTIPLE LANGUAGES Widget Vocabulary is not limited to English. Learn and expand your vocabulary in multiple languages, including Spanish, French, German, Italian, Portuguese, and more. Whether you're studying a new language for travel, work, school, or personal growth, you can customize your learning experience and build vocabulary in the language that matters most to you. Learn new words, understand their meanings, hear their pronunciations, and practice them daily through your Lock Screen and Home Screen widgets. LISTEN TO PRONUNCIATIONS Hear how words are pronounced by native speakers and improve both your vocabulary and pronunciation at the same time. Perfect for learners who want to speak with greater confidence. PREMIUM SUBSCRIPTION Widget Vocabulary offers optional auto-renewing subscriptions: • Weekly Premium • Yearly Premium Premium unlocks the full learning experience, including advanced features, premium vocabulary packs, unlimited access to learning content, and additional customization options. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscription anytime from your App Store account settings after purchase. SUPPORT Questions or feedback? Email: support@orbitstudios.io LEGAL Privacy Policy: https://orbitstudios.io/widget-vocabulary/privacy-policy Terms of Use (EULA): https://orbitstudios.io/widget-vocabulary/terms-of-use

Kerotakis is a virtual chemistry laboratory that computes real chemistry. Drag reagents onto drawn glassware and a real aqueous-equilibrium solver answers. Nothing in it is a lookup table: every number comes out of a thermodynamic database at run time, which means the bench can do something a textbook cannot — show you a model working, and then show you the same model failing. WHAT IT COMPUTES • Dissolution and precipitation against actual solubility limits. Eight moles of salt in a litre of water leaves about 1.9 undissolved, because that is what the equilibrium says. • Acids and bases from charge balance — strong, weak, polyprotic through every pKa, and buffers that resist acid where plain water crashes. • Titration curves walked with a burette, to the equivalence point and past it. • Gas boundaries you choose: vent to the room, seal the vessel, regulate the pressure, or sweep with nitrogen. Pressure, volume, energy and the mass balance all answer to the constraint. • Heats of reaction that move the thermometer, so calcium chloride is a hot pack and potassium chloride a cold one. • The activity series decided by Nernst over computed potentials — including the refusals, like copper shrugging off acid. • Separations: filter a precipitate off, evaporate a brine to crystals, distil a mixture. THREE LEVELS, ONE SIMULATION A register dial re-tells any result at the depth you want. Level one is what you would see: it went cloudy, a white solid settled. Level two adds the measurements. Level three shows every species, activity and coefficient behind the answer — the same numbers, never a different simulation. Every result carries where it came from, and the app says "unassessed" rather than implying safe when nobody has checked. OFFLINE, ALWAYS The solver, the thermodynamic databases and the whole lesson library are inside the app. It makes no network requests, has no account, and collects nothing whatsoever. It works with the network switched off. Built on IPhreeqc from the U.S. Geological Survey. Kerotakis is free software; the source is at github.com/CrispStrobe/kerotakis.