- the user interface for switching modes of measurement is changed- VoiceOver support is improved- new inertial spec calibration for increased accuracy (when necessary)- improved performance on the iPhone 6S and 6S Plus- optimized for iOS 9- other minor alterations and improvementsWe thank you for your ratings and reviews, as they help us to develop and improve the app. We do hope you will find time to leave a rating or review for this update. Thank you!