Spin vs YYi Calculator

Stop overthinking. Start spinning. Spin is the simplest way to make any decision — just add your options, tap the wheel, and let it decide for you. Whether you're figuring out where to eat, what movie to watch, or who's buying the next round, Spin makes it fun. HOW IT WORKS • Add whatever options you want — restaurants, names, dares, anything • Tap the wheel and watch it fly • Get your answer — no more going back and forth MADE FOR REAL LIFE • Can't agree on dinner? Spin it. • Too many things on your watchlist? Spin it. • Need a random team picker? Spin it. • Settling a debate with friends? Spin it. BUILT NICE • Smooth, satisfying spin with a realistic slow-down • Spin history so you can look back at past results • Light and dark mode • Clean, no-clutter design — just you and the wheel Spin is free, fast, and takes about 10 seconds to set up. Give it a go — what's the worst that could happen?

"I’m a developer and a dad. I built this calculator and its handy everyday tools for my family and me. Simple and easy to use on iPhone, iPad, and Mac." Personalize your calculator with rich themes and keep every calculation organized in tabs. Explore powers, roots, logarithms, trigonometry, constants, random values, memory, and parentheses. Organize work in tabs, reuse any past number, and see each tab’s total and average. Live formulas remain visible until you calculate, and the interface adapts to portrait and landscape. YYi Calculator is free: no account, ads, analytics, or tracking. Create custom themes with your own colors, font, and text size. Reuse complete formulas from history for further editing, with confirmation before replacing the current calculation. Explore a screen ruler, protractor, lighting tools and media reports in text or JSON. Use a level and magnetic compass on compatible devices. Measure distances with AR on compatible devices. Screen ruler and AR measurements are approximate; calibrate the ruler before use. Selected tools request camera or photo access; revoke it in system settings. Analysis runs on device. iCloud items may download via Apple. Reports may contain personal data; review before sharing. Feedback opens your mail app with the device model and app version prefilled; you choose whether to send. Explore uses tool visit counts and time stored on this device to arrange tools. Tool settings and measurement results also stay local. Clear history and measurements in the app; contact support for help removing other local data. These records are not sent to us. Manual order and the feedback cooldown are also saved on this device. Version highlights 1.6 • New level and magnetic compass on compatible devices. The protractor supports two-arm, single-arm and photo modes. • Reorder Explore categories and tools, and open email feedback from Support. 1.5 • Explore a screen ruler, lighting tools and media information, with text or JSON report export. • Measure distances with AR on compatible devices. Screen ruler and AR measurements are approximate; calibrate the ruler before use. 1.4 • Reuse complete formulas from history for further editing, with confirmation before replacing the current calculation. • Windows now share a single draft and history, with consistent restoration when reopening the app. 1.3 • Custom fonts and text size, plus localized Shortcuts and Siri phrases. 1.2 • Custom theme colors and a refreshed theme preset palette. 1.1 • Basic and scientific calculations, history tabs and number reuse.