This app was mentioned in 7 comments, with an average of 1.71 upvotes
Rebrickable and myBrickset. I use brickset to scan Barcode or look up sets, and keep track of what sets I have/want. Between brickset, rebrickable, and amazon, I've got an app for just about everything in terms of inventory and price checking.
Brickset app: https://play.google.com/store/apps/details?id=uk.co.otissoft.mybrickset
I use MyBrickset. It's a complete app, but downloads lots of stuff in order to have the catalog available offline, so be aware of that. It syncs with Brickset, so it‘s a perfect app IMO. :)
I use the myBricks Android app ( https://play.google.com/store/apps/details?id=uk.co.otissoft.mybrickset ) that sync's everything with brickset.com and from there you can talk to there API if I remember correctly.
Maybe that can work for you.
I use MyBrickset on Android. It's a pretty good app, and it syncs with Brickset DB. :)
https://play.google.com/store/apps/details?id=uk.co.otissoft.mybrickset
This is what I use. Great for syncing with brickset.