whats this app /gadget

[steveo3002]

seen a youtuber that resells stuff on ebay , he scans the barcode on an item in a junk shop etc and up comes up all the completed ebay sales to see if its worth grabbing to resell

any ideas what it is please

[mmm-five]

Something like this? (first result on google)

[steveo3002]

hah yeah...tried searching in app store and couldnt find it , must be my age ,thanks