It gives you an option for adding, deleting, searching and selecting a product for which you want to generate bar code.
How to use:
For the first time, select or add a product by taping the menu button.
The random code that you can change will be set up in a text view.
Select the code format from the drop down i.e. CODE_128 as the default.
Edit the random text or just tap next on your key board or done.
A bar code or QR code image will be generated depending on the code format selected.
You can also search for the old codes used and if it exists, it will return the product attached to, the date used and the code format.
The old codes can be deleted by a long pressing it till a confirmation message pops and you confirm.
You can long press on the generated image if you want to save it on the sd card.