One of our favorite calendar apps, Cal, is available for free today via the myAppFree promotion. The minimalist calendar client features a modern user interface that allows you to set custom colors for your entires, change the color scheme to match that of your phone's accent color, switch between week and day view, and much more.
In terms of support, Cal can handle Outlook/Live/Hotmail/Google calendars along with Facebook birthdays and events. It is one of the most feature-rich calendar utilities available in the Windows Phone Store, and best of all, is available for free today.
Head on over to the link below to download Cal, and let us know what you think of the calendar client in the comments below.
Thanks for the tip Tanzim and Karthik!