You will need https://f-droid.org/packages/com.google.zxing.client.android to be installed to make the most of this app. Scanner For Zotero brings Zotero's magic wand tool out into the physical world. Scan the ISBN barcode on any book and Scanner For Zotero will fetch that item's bibliographic information from the web and allow you to add it to your Zotero library.