Only the current version so far — new entries appear as the app ships updates.
MATCO TOOLS - SmartEAR 2 is a productivity app by JS Products, Inc with 1,000+ downloads (about 1.2K estimated). +2 installs in the last 7 days. Released Dec 4, 2014. Install growth, rank history, SDKs and ad networks.
From the store listing: “****MATCO TOOLS – SmartEAR 2 – Sound & Vibration Detection****”