Only the current version so far — new entries appear as the app ships updates.
Mac Tools - SmartEAR 3 Lite is a productivity app by JS Products, Inc with 500+ downloads (about 965 estimated). Released Jan 19, 2016. Install growth, rank history, SDKs and ad networks.
From the store listing: “Mac Tools Bluetooth SmartEAR 3 Lite Noise Vibration Harshness Detection”