From Prana Computing:
Schedule and track appointments and to-do items through the familiar spreadsheet interface. You can schedule repeating tasks and appointments in a single step, set pop-up appointment reminders, and look at your schedule and task list in monthly, weekly, or user-specified-duration views. Maintain a free-form address book, track important dates (anniversaries, birthdays, and license renewals), and keep a secure list of online logins and passwords. Organize your action items in tidy categories. Adjust your view size with a handy slide bar to enlarge or shrink the onscreen information. Ensure the safety of your data with built-in backup and restore functions. Version 1.3 adds the option to display the time in a 24-hour format, and adds minor bug fixes.