ZXing - Barcode Scanner for Android
UserGuiding - User onboarding made easy, for less. Create product walkthroughs in a couple of clicks, without breaking the bank.
Barcode to PC: Wi-Fi scanner - Turn your smartphone into a real barcode scanner
Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.
bcWebCam - Scan barcodes and QR Codes with your computer web cam
Userlane - Digital adoption platform with interactive guidance for software applications allowing anyone to understand and master any software from the get-go.