Air Ruler vs Calcora

Turn your iPhone into a real, precision ruler. No need for a physical ruler — your screen becomes a true mm/cm scale. Screen Ruler Mode Place your phone next to any object. The screen displays a real millimeter and centimeter scale. Perfect for: Small objects, parts, jewelry Paper, photos, cards Screen bezels, phone cases, printed materials Anything that requires a direct, physical scale Why Air Ruler? No physical ruler needed — your phone is all you need Pure screen ruler mode, no AR complexity Clean, simple, open-and-use interface Supports cm / inch switch Use Cases DIY & crafts: materials, fabric, model parts Office & study: book dimensions, on-screen image sizes Home & daily use: check length/width of small items Quick estimation: need to know how long something is? Just use your phone Air Ruler. Measure anywhere. — Privacy Policy please visit: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA)： * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Stop juggling a dozen single-purpose calculators. Calcora brings 19 precision tools together in one fast, beautifully designed app — from everyday math to live precious-metal valuation — with a tech-inspired interface, 5 themes, and 14 languages. EVERYDAY & SCIENTIFIC • Basic calculator with history tape • Scientific calculator (trig, log, powers, DEG/RAD) • Tip & bill split with service presets LIVE MARKETS — our standout feature • Precious Metal: gold / silver / platinum — enter weight (g or oz), pick purity (24K/22K/18K/14K), get instant valuation with a 24h sparkline, and save your valuation history • Currency converter with a live FX rate board • A dedicated Markets tab with Bloomberg-style spot tiles FINANCE • Loan & mortgage — monthly payment + total interest • Compound interest — contributions & 4 compounding frequencies • Discount & sales tax LIFE • Hourly ⇄ annual wage • Calorie / TDEE (Mifflin–St Jeor) • Fuel economy (metric & MPG) • Beer ABV PRO & INDUSTRY • Renovation materials (tile & paint) • Woodwork board-feet • Baking cup⇄gram converter • Textile GSM & yarn count • Jewelry weight (ct/g/grain/ozt) • Concrete volume & bags • Ohm's Law (V/I/R/P) WHY CALCORA • 5 stunning themes — Deep Space, Terminal, Future, Solar Amber, and a clean Daylight light mode • 14 languages, auto-matched to your device: English, 简体中文, 繁體中文, Español, Português, Italiano, Français, Deutsch, Русский, 日本語, 한국어, Tiếng Việt, हिन्दी, العربية • Privacy-first: no account, no sign-up. Your calculations, history and settings stay on your device • Real-time results as you type — no "equals" needed • Designed for iPhone, optimized and lightning fast FREE & PRO Basic, Scientific and Tip are always free. Unlock any professional tool for a single use by watching a short ad, or go Pro for unlimited, ad-free access to all 19 tools plus precious-metal history cloud sync. • Calcora Pro — Monthly $0.99 · Yearly $4.99 (best value, ~$0.42/mo) Subscriptions are billed through your App Store account and auto-renew unless cancelled at least 24h before the period ends; manage anytime in App Store settings. Download Calcora and replace your calculator drawer with one elegant app. Terms of Use: https://minertycoon.live/site/calc/terms_of_use.html Privacy Policy: https://minertycoon.live/site/calc/privacy_policy.html