Realmac software announced today that its popular to-do manager Clear has made its way from the iPhone to Mac OS X. The Mac version shares the same simple interface as the iPhone version, with a UI that's optimized for a trackpad instead of touch.

The OS X version was released alongside a major update to the iPhone app that brings iCloud syncing. With iCloud now linking the iPhone app with the Mac App, your to-do lists can follow you wherever you go.

To celebrate the launch, RealMac Software is listing the Mac version for US$6.99, which is 50 percent off its regular price. This price is in effect from now until November 12. You can grab the iPhone version for $1.99 from the iOS App Store.