Chapter vs Engineering Formulas

Chapter is the game where you decide your future. School keeps asking what you want to be. Chapter lets you find out properly. Explore a living world, try real careers before you commit, apply to real universities and build skills that count when you log off. Built with schools across the UK. For ages 11+. STEP INTO THE WORLD • Explore Career Town, University Hub, Startup City, the Skills Garden and the Arcade Zone - every district packed with buildings, characters and quests • Get sorted into one of four Chapter Houses - Sapientia, Custodia, Audacia or Concordia - and battle for your house on the leaderboards • Your Dorm is home base. Decorate it, fill your trophy cabinet, pin your plans to the mood board and adopt a pet (yes, there's a baby dragon) CREATE YOUR AVATAR • Decide who you want to be in the Avatar Studio • Hundreds of hairstyles, outfits and accessories to unlock as you play TRY CAREERS FOR REAL • 100+ career profiles with real salaries and what a day in the job actually looks like • Complete Virtual Work Experience with 30+ real UK employers - tech, healthcare, finance, engineering, media and more • Live a week of Medicine, Law, Engineering, Psychology or Computer Science in immersive Course Tasters • Take the Life Design session and get a letter from your future self APPLY TO UNI • Search 30,000+ real courses from UK universities • See how your grades match up - entry requirements, UCAS points, your strongest fits • Compare courses side by side, check league tables and book open days • Build your personal statement in the Studio with examples, guides and a challenge leaderboard • Track all five UCAS choices in Application HQ GET HIRED • Apprenticeships, CVs and work experience - every route, not just the obvious one • Build your CV in the AI-powered CV Workshop • Practise five interview formats and full assessment centre exercises before the real thing • Meet real companies at the Employer Fair START YOUR BUSINESS • Learn the basics in Startup City • Pitch your idea, face investors and test your brand in the Simulator • Build a business from scratch and see if it flies BUILD SKILLS • Grow your Skills Garden, Island or Sanctuary and watch your progress bloom - literally • Level up Leadership, Resilience, Empathy, Communication, Creativity and more • Everything feeds your Career Passport: proof of the skills universities and employers actually ask about HIT THE ARCADE • 14 games that sneak learning in - Higher or Lower, Salary or Bluff, Sixty Second CEO, Survival Simulator, Who Am I and more COMPLETE QUESTS • Daily quests, school quests and challenges across every zone • Earn XP, coins and badges. Keep your streak. Climb school and regional leaderboards • Chat with Chappy, your AI career guide who remembers your goals and what you've tried SAFE BY DESIGN • Safety-first chat moderation, built for students from day one • Optional school accounts so teachers can set quests and see progress Stop guessing what you want to be. Start trying it.

EngiRef is the all-in-one engineering reference app that works 100% offline. Access formulas, material properties, reference tables, and a powerful unit converter - all without internet connection. FORMULA LIBRARY Browse 140+ essential engineering formulas organized by discipline: • Mechanical Engineering: stress, strain, torque, power, gear ratios, spring design • Electrical Engineering: Ohm's law, AC/DC circuits, impedance, resonance • Civil/Structural: beam deflection, Euler buckling, Manning's equation • Thermodynamics: ideal gas law, Carnot efficiency, heat transfer • Fluid Mechanics: Bernoulli, Reynolds number, Darcy-Weisbach • Materials Science: Young's modulus, Poisson's ratio, fatigue analysis BUILT-IN CALCULATOR Enter your values and get instant results. Every calculation shows step-by-step solutions so you understand the process, not just the answer. Perfect for learning and exam preparation. MATERIALS DATABASE Access properties for 55+ engineering materials: • Carbon steels (AISI 1018, 1045, 4140, 4340) • Stainless steels (304, 316, 17-4 PH) • Aluminum alloys (6061-T6, 7075-T6, 2024-T3) • Titanium, copper, nickel alloys • Plastics (ABS, HDPE, Nylon, PEEK, Delrin) • Composites, concrete, and wood Compare up to 3 materials side-by-side with density, tensile strength, elastic modulus, thermal conductivity, and more. REFERENCE TABLES • Bolt specifications: Metric M3-M36, SAE/Imperial sizes • Pipe schedules: NPS dimensions and wall thickness • Wire gauges: AWG 0000-40 with ampacity ratings UNIT CONVERTER Convert between 16 categories including length, pressure, temperature, force, energy, flow rate, and viscosity. Accessible from any screen via slide-over panel. PHYSICAL CONSTANTS Quick reference for 34 constants including speed of light, gravitational constant, Boltzmann constant, Avogadro's number, and more. QUIZ MODE Test your knowledge with flashcard-style quizzes. Track progress across all disciplines. Prepare for FE and PE exams. ADDITIONAL FEATURES • Dark and light themes (follows system setting) • Favorites to bookmark frequently used formulas • Calculation history with timestamps • Create and save custom formulas • Export and share your data • LaTeX formula rendering • iPad-optimized layouts PRIVACY FOCUSED EngiRef collects zero personal data. No analytics, no ads. All your calculations and favorites stay on your device. We believe engineering tools should respect your privacy. Whether you are a student preparing for exams, a working engineer needing quick field reference, or a technician looking for material specs, EngiRef puts essential engineering knowledge in your pocket. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/