I like that you can use it to create your own markers, which makes creating an app really easy (I'm using this in my current project). It's also very customizable - so if there isn't exactly what we need out of box then its simple enought edit them yourself! Sometimes when i run into problems or errors while running tests they dont respond at all but sometimes after about 10-15 minutes things start working again without me doing anything special. Try playing around first before making any final decisions because some features may not be as useful/powerful than others depending how much time will have passed since last update etc.. Also make sure other people are able too test their apps once everything works ok :) We're developing our application where users scan barcodes from products displayed online by retailers such as Amazon & Walmart via QR codes generated through Android App Scanner library provided within droidar package itself.