Unfortunately, the Lark application is not supported on tablets, personal computers, non-smart phones, or smart watches. For the best experience with your Lark program, please only use Lark on your mobile smart phone. Lark is designed to be utilized exclusively on a mobile phone because the app uses motion sensors on your mobile phone to track your activity and sleep. Lark additionally relies on an active mobile data connection to work correctly. Tablet devices and personal computers often do not have these sensors or data connection capabilities, making them unsuitable for using the Lark application.