All Gone...

Mac applications tend to keep all of their components in one place; namely, their application packages (the icons you see within the Applications folder). You can normally discard an unwanted application simply by dragging it to the trash. However, there are normally some small configuration files left behind on other parts of your drive, like preference files. They are mostly harmless and quite tiny.

If you are really fastidious though, you might like to try AppDelete. When you drop an app on AppDelete's icon in the Dock, it takes that application and any associated support files that it can find and moves them to the trash.

Afterwards you can leave AppDelete running while you check that other apps haven't been affected by the file system changes. You can then simply press the Undo button to reverse the operation.

Even in the unlikely event that you encounter glitches further down the road — you will find when looking in the trash that AppDelete has stowed the suspect files in neat folders that represent where they were removed from.

All in all, a handy and safe method of removing all traces of an un-wanted app.