QR Code Reader vs FieldCalc

QR Code Reader: Batch Scanner is a professional-grade utility built for speed, security, and organization. If you are tired of scanning codes one by one or using basic readers that do not save your history, this application entirely changes your workflow. Designed for both everyday users and professionals, it provides a comprehensive suite to capture, create, and manage digital information effortlessly. HIGH-SPEED SCANNING & SECURITY * Batch & Single Scan: Capture multiple codes simultaneously without returning to the home screen, or use the single mode for quick lookups. * Gallery Scanning: Extract data directly from images saved in your camera roll. * Link Security Validation: Automatically check scanned URLs to ensure they are safe before you open them. * Feedback Controls: Customize your scanning experience with adjustable haptic and audio feedback settings. GENERATOR & DESIGN * Multi-Format Creation: Generate codes for any purpose, including URL, Text, Wi-Fi, vCard, Email, Phone, SMS, and Geo-location. * Custom QR Design: Personalize your creations by adjusting colors, modifying visual styles, and adding your own center logos to make them stand out. MANAGEMENT & EXPORT * Scan History Log: Never lose important data. Access a complete record of everything you have scanned. * Node Clusters & Bookmarking: Organize your saved codes into custom folders (Node Clusters) and bookmark your most frequently used items. * Advanced Export: Share your scan history logs via CSV or PDF, and export your custom-designed QR codes as high-quality Image or PDF files. SUBSCRIPTION & ACCESS TERMS Important: Access to the app requires a subscription, and there is no free content available. Payment will be charged once the subscription purchase is confirmed. * Your subscription will auto-renew unless disabled 24 hours before the current period ends. * Renewal cost depends on the selected standard plan, with exact pricing based on your local App Store Price Matrix. * Free trial subscriptions automatically shift to a paid plan. Manage or cancel in your Account Settings post-purchase. * Note: Any unused portion of a free trial period (if offered) is forfeited upon purchasing a premium subscription. For additional information, please refer to our Privacy Policy and Terms of Use: Privacy Policy: https://docs.google.com/document/d/1vh-SXIl0KzDwrA09iw-cyYJIdBECEwd5JiKXbb-EJ3I/edit?usp=sharing Terms of Use: https://docs.google.com/document/d/1rdUUnei7AwK4ppAsexCKmkHA0M0iClSoJyWQqMZqxIM/edit?usp=sharing

FieldCalc is the only calculator an HVAC/R technician needs on a service call. Every daily calculation in one fast, modern, fully offline app — no subscription, no clutter. CALCULATIONS - PT Chart — saturation pressure and temperature for R-410A, R-32, R-22, R-134a, and R-407C, with instant analog gauge readout - Superheat — suction line superheat with flooding warnings - Subcooling — liquid line subcooling with flash gas warnings - Duct Sizer — equal-friction round and rectangular duct sizing (ACCA Manual D / ASHRAE), with velocity limit warnings - Delta-T / Sensible Load — sensible BTU/hr and required airflow, with tonnage and metric conversions WHY FIELDCALC - Works 100% offline — no signal needed on the roof or in the basement - Imperial and metric units on every screen - Modern, high-contrast interface built for the field - Fast — open, calculate, done - No account, no subscription Built on trusted engineering sources: CoolProp thermodynamic data, ACCA Manual D, and ASHRAE Fundamentals. FieldCalc is a reference tool for qualified HVAC/R professionals. Always verify results against equipment manufacturer specifications and applicable codes.