42goals - 42goals is a simple tool for tracking your daily goals and keeping a log of your daily activities.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

BucketListly - The most beautiful & advanced bucket list you will ever have

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.

List Challenges - Earn points for your life experiences. Find lists that interest you, and mark off what you've done.

Strikethru - Strikethru is a kind of to-do list notebook for managing work lists and staying updated with the important tasks.