At first, the camera wasn't working. I remembered that with the Marshmallow update, apps need to be given permission to use other resources. Went into the AppInfo and enabled access to camera and memory card. This fixed the camera problem. However, the barcode scanner takes quite a while to recognize a barcode. I wish it was faster, hence minus 1 star. All in all, this is an app that I have been waiting for. We are using the iMark right now, but we might be able take that off our hands and not pay the monthly fee for it. I would recommend that you update this app to immediately ask for permissions to use the camera upon installation or upon first run of the app. Otherwise, people are going to think it's not working. Also, you could add "Enable App Permission to access Camera" on the error message.
Great App Makes ordering a lot easier!!!
* Added Shelf Tag printing for orders
* Added settings for Shelf Tags printing
* Added validation for scanned barcode symbols
* Performance and UI Updates and Fixes