Southwest's 'Ding!' arrives on Macs

Southwest announced earlier this week that its "Ding!" software—which alerts users to special sale fares not available through the airline's weekly email alerts—is now compatible with Macintosh computers. The move comes

more than a year

after Southwest unveiled the PC version of the same product.

As a special incentive, you can

get two Rapid Rewards credits

for downloading either version (Mac or PC) before April 3 if you keep the software on your desktop for at least 30 days.