The CRM Software CentralStationCRM is not just optimized for Mac, but also for mobile access with your iPhone or iPad. You can log into your CRM using your Safari browser or put the icon of the web app right on your homescreen. The mobile interface of CentralStationCRM is adjusted to the small screen if you use the iPhone or the iPad mini, on the 10 inch iPad you will want to use the regular interface.
The mobile interface is not just smaller, it is also optimized for mobile use in areas with bad net coverage. That makes sure you have always access to all your contact details in your CRM, no matter when or where you are.