http://www.appsmoment.net/jv/idevaffi...
My video assumes that you have basic understanding of App Inventor 2 platform provided by Google. If not, you can google App inventor 2 to know how to setup App inventor 2 on your machine.
Use this App Inventor tutorial to learn how to make bar-code scanner app without writing codes. Once you understand the concept, you may make various variation of this app. For example, you can improvise this app to make a stock take module of a point of sale system used by retail shops, cafes etc.
Still finding tedious to make an app? Try this
http://www.appsmoment.net/jv/idevaffi...