With timr you have a native application for your phone. Due to this fact, the mobile traffic is as small as possible because you don’t have to load a complete website. Only the real time tracking data will be transmitted on starting timr as well as starting or stopping time tracking.
No images and other stuff have to be downloaded, this makes timr fast and reduces your mobile data traffic costs. If you are not sure about your mobile data traffic costs please contact your mobile service provider for further information.