Tasker - Tasker is an application for Android which performs Tasks (sets of Actions) based on Contexts...
Habit List - Create good habits and break bad ones with the app that keeps you focused.
LibreTasks - Trigger actions when certain events happen.
Momentum - Agile goal and performance management
Automate - Automate various tasks on your Android smartphone or tablet.
Streaks - The to-do list that helps you form good habits.