Tasker vs On{x}

Tasker has an impressive amount of triggers, actions, and parameters that can be used together in an incredible variety of ways. It can even accept scripts to follow instructions.

Tasker has the ability to create custom applications, effectively replacing multiple installed apps in your phone with tasks that are triggered automatically. What's even better is that they will be custom tailored to fit your specific needs.

With Root access it can also dabble with system software which other apps are not likely to achieve at the moment.

Tasker allows exporting workflows you've created as standalone applications that can then be shared or even put on the Google Play store.

Tasker has awesome plugin support to connect with hardware that usually requires installing specific apps. For example, it has a plugin for Pebble smartwatch so that you can automate tasks that require using Pebble.

The dev does not keep bringing out revised apps expecting you to pay each and every time; the same app has been developed consistently for nearly a decade.

On{x} users have access to a whole database of specialized scripts that can be edited or used as they are.

Instead of having to edit code directly from your phone, code is edited through Microsoft's onx.ms website.

This app tracks users by GPS and knows if they are sitting still, walking, running, or driving. This functionality can be used to trigger actions when a certain pace is achieved, such as "Play music when I start running."

The GPS integration can also be useful for triggering actions when a user leaves or arrives at a location. Popular recipes that use the GPS function are "Remind me to work out if I haven't been to the gym in 3 days" or "Text my boyfriend when I leave work".