Precision Unit Converter vs QR & Barcode Scan

Precision Unit Converter makes measurement conversion easier to understand, faster to navigate, and more useful to learn from. It combines a high-precision converter with a visual library of 107 categories and 920 units, guided lessons, practice, search, favorites, and history. CONVERT WITH CLARITY Choose a measurement category, select your From and To units, enter a value, and get a clean result. Swap units in one tap, copy the answer, or save the conversion for later. Illustrated unit selectors make long technical lists easier to scan. The converter supports decimal and scientific notation, handles very large and very small values, and uses clear safeguards for long entries. EXPLORE 107 CATEGORIES AND 920 UNITS Start with familiar fields such as length, area, volume, mass, time, temperature, angle, speed, force, pressure, energy, power, current, and voltage. Then continue into specialized engineering and science topics including thermal transport, rotational mechanics, electric fields, magnetic systems, molar properties, fluid behavior, material response, and combustion. Core and Expert collections keep the catalog approachable. Each category has its own visual cover, and every unit has an individual illustration, name, symbol, category, and concise educational description. SEARCH THE COMPLETE UNIT LIBRARY Find a specific unit across the full 920-unit catalog instead of opening categories one by one. Search by localized name, English name, or symbol, then narrow results by Core, Expert, favorites, or category. Open a unit profile to review its meaning, category, base unit, and a verified relationship to that base. From the same screen, set the unit as the starting value for a conversion or open its full category. LEARN HOW THE SYSTEM WORKS The Learn area turns the unit catalog into a structured course library. Browse five core subject groups and eight advanced groups, continue your most recent lesson, and track progress across all 107 categories. Each lesson explains the category concept, identifies the base unit, introduces useful unit relationships, and presents calculated examples. When you are ready, complete the lesson and start a five-question practice session covering base-unit recognition, unit relationships, and numerical conversion. Practice feedback appears after each answer. Passing results update your progress, while retry and review options make it simple to reinforce a topic without losing your place. SAVE, RESTORE, AND COMPARE Save useful results to Conversion History and return to them whenever needed. Each record keeps its category, starting unit, destination unit, input, output, and time. Reopen a record to restore the exact conversion setup, copy its value, remove one item, or clear the list. Favorite categories stay easy to reach from the main library and remain available as filters in unit search. A VISUAL TOOL FOR REAL WORK Clear hierarchy, large controls, searchable selectors, responsive layouts, and light or dark color themes help the interface stay readable during study or detailed technical work. The interface and educational content are available in English, German, Simplified Chinese, Korean, French, and Spanish. Precision Unit Converter is useful for students, teachers, engineers, technicians, makers, travelers, cooks, and anyone who wants more context than a basic conversion box provides. Convert a value when you need the answer. Open a lesson when you want to understand why it works.

QR & Barcode Scan is the ultimate scanning tool designed for speed, accuracy, and simplicity. Whether you need to scan a product barcode in a store, read a restaurant menu, or generate your own custom codes to share with friends, this app provides everything you need in one clean, intuitive interface. Built with advanced scanning technology, the app instantly recognizes and decodes information the moment your camera points at it. There is no need to press any buttons, take photos, or adjust the zoom manually—the app does all the work for you. Lightning-Fast Scanning: Automatically detects and scans codes in milliseconds with high precision. Universal Compatibility: Supports all standard 1D and 2D barcode formats including QR, Data Matrix, Aztec, UPC, EAN, Code 39, and many more. Create and Share: Easily generate your own custom QR codes for URLs, Wi-Fi networks, contacts, plain text, emails, SMS, and locations. Scan from Gallery: Quickly decode QR codes or barcodes directly from images saved in your iPhone or iPad photo library. Flashlight & Auto-Zoom: Use the built-in flashlight support for scanning in dark environments and let the app automatically zoom to read codes from a distance. Comprehensive History: Automatically save all your scanned and created codes in an organized, easy-to-access history log so you never lose important information. Action-Oriented Results: Take immediate action after scanning. Instantly open web links, connect to Wi-Fi networks without typing passwords, add contacts to your phonebook, or search for product prices online. Privacy Focused: Requires only camera permissions for scanning. Your personal data and privacy are always protected. Transform your device into a powerful, pocket-sized scanner. Download QR & Barcode Scan today and simplify the way you interact with the digital and physical world around you! Subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing cycle. Renewal charges occur within 24 hours before the period expires. Manage your subscription or disable auto-renewal through your Apple ID Account Settings. Please note that any remaining free trial days will be forfeited upon purchasing a subscription, where applicable. https://majinapps.com/privacy https://majinapps.com/tos