Only the current version so far — new entries appear as the app ships updates.
Bar-Code reader is a tools app by PW2 di Roberto Sonzogni with 50,000+ downloads (about 74K estimated). +1 installs in the last 7 days. Rated 4.2 from 125 ratings. Released Nov 20, 2015. Install growth, rank history, SDKs and ad networks.
From the store listing: “Free and simple app to scan 1D & 2D barcodes (QR-Code,CODE-128,PDF417....)”