Hootsuite is our preferred platform for posting to multiple Social Media accounts / platforms from one place.
Manage social networks, schedule messages, engage your audiences, and measure ROI right from the dashboard.Hootsuite
It boasts loads of great posting features and has a mobile App, but right now there is no Desktop App. Well by using a very clever Mac Desktop App called Fluid you can “Turn Your Favorite Web Apps into Real Mac Apps” which means that yes you can convert Hootsuite Web Site into a standalone Mac App.
The only limitation is that you will need to Log in if you have closed the App, but other than that if you leave it open Hootsuite simply goes into sleep mode.
We also like using Fluid to create a Desktop App for BBC Radio.
Right now Fluid App is only for Apple users.