Momentum - Agile goal and performance management
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
Letz - Chat bot that will make you enjoy productivity
Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.
QuietKit - Guided meditation for beginners (for free)
Strikethru - Strikethru is a kind of to-do list notebook for managing work lists and staying updated with the important tasks.