Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Gift Hero - The best wish list ever
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
Giftwhale - Giftwhale allows you to create personalised wish lists online.
Workflowy - A better way to organize your mind.
Capitan - AI powered shopping list: Never forget anything at the store