You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.

Free software on your phone or tablet lets you scan, create, edit, annotate and even sign digitized documents on the go.

From Aadhaar cards to currency notes, scanning physical documents is a common task most of us perform using our smartphones. While scanning documents on Android devices is quick and easy, many users ...

Turn your smartphone into a professional car diagnostic tool with a $15-30 OBD2 adapter and free apps that read engine codes ...