A free program for Android, by Komparato.

The Checklist app allows you to create, group, and check tasks for various reasons, such as: to-do lists, daily plans, personal organizers, and even packing lists.

To-do lists: Organize your day, week, month, or year with the help of checklists. Create lists of anything that needs to be done, be it tasks, shopping, or just plain fun. Checklists help you stay focused and organized, and will also remind you to complete them.

Packing lists: Pack for a trip or a holiday with a to-do list, so you won’t forget anything! Use the Checklist app to make a packing list with all the items that need to be packed in a particular bag. It’s a simple way to keep track of everything you need for your holiday.

Grocery lists: To-do lists help you remember what food you need to buy. Checklist allows you to create grocery lists for your family, friends, and even your pets.

Daily plans: Use Checklist to create a daily plan of your day, week, month, or year. This plan will help you stay organized, so you won’t forget any important task that needs to be completed.