IFTTT
Free
IFTTT is a free web-based service that people use to create chains of simple conditional statements, called applets.
Automagic Premium
Commercial
Automagic is an Android-Phone and Tablet App, which can be used to automate several things.
AutomateIt
Freemium
AutomateIt is an Android app designed to simplify your life by automatically performing various tasks.
Compare Tasker with alternatives
Compare Automagic Premium and Tasker and decide which is most suitable for you.