Free Alarm Clock - Free Alarm Clock is a free, full-featured and user-friendly computer alarm clock for Windows.
Simply Remind Me - Free email and text reminder service so you don't forget the important things in life!
Date Reminder - Date Reminder reminds you of recurring or nonrecurring events, like birthdays, bills to pay...
FollowUpThen - The simplest way to schedule an email reminder
Apple Reminders - Reminders is a powerful task management application from Apple that enables users to create, manage, and fulfill tasks on time.
Auto Mail Sender - Auto Mail Sender Standard Edition official page. A powerful and easy-to-use eMail scheduler.