This Stickers Manager allows you to have more control over all the stickers that have already been filled, the ones that are missing and the repeated ones that you have. It allows, through a QR code system, to compare the repeated stickers of your colleague with the stickers that are missing for you, so it informs you exactly which stickers you should change without wasting time, for that just point the QR Code reader that comes in the app to the QR code that will be in your colleague's app.
Each session is in the same order as it appears in the physical album and has the code of the picture along with the page of the album it is on.
It is a simple and intuitive application that is open to suggestions for future improvements.