The is the most lightweight (but fast, efficient, and feature-rich) QR code & barcode scanner and Generator app for Android you could ever find on Google Play Store 👍 💪
QR code & barcode scanner and Generator app focuses on the core functionality to scan and read the most common types of QR codes and barcodes with super fast speed and delightful user experience, designed for all Android devices.
QR code & barcode scanner and Generator app helps you to scan and read all types of QR code and barcodes: Contact Info, Phone, Email, Website, Product, Text, SMS, Wifi, Map Location, Calendar Event and more.
QR code & barcode scanner and Generator app also has a QR generator feature allowing you to generate your own QR codes and barcodes with different types easily.

Super-fast, super-lightweight, and easy to use
Genrate & Scan QR code & Barcode
Select & Scan QR code & Barcode From Gallery & Camera
History of Scanned and genartred QR code & Barcode

Advanced setting options to ensure the scanner is optimized for your own android's camera

QR code generator: generate QR code using your phone.
Download genarted QR Code & Barcode in PDF