Best I've found. – PowerSense: Motion Sensor Data Logging Tool Review

I needed an app that could capture watch sensor data. It does. It offers different types of data to capture. It exports logs for easy excel graphs. Simply put, it does what it says it does. I paid for the pro and love it. I have provided feedback to the developer for some extra features but it already is a great app in its current state.
Review by abw5 on PowerSense: Motion Sensor Data Logging Tool.