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AppZapper is outdated and works like garbage in Lion and Mountain Lion. The novelty of the little "ZAP" sound is not worth it's uselessness in newer versions of OS X.

AppCleaner is, in my opinion, the best free app cleaner available. However... the best app cleaner overall is CleanApp.
 
I caution the use of these types of apps.

Many have a "move the app to the trash" feature to remove the rest of the app.

Often reinstalling/updating an app can cause loss of data in these cases.

If you value your data, make backups before using these.
 
AppZapper is outdated and works like garbage in Lion and Mountain Lion. The novelty of the little "ZAP" sound is not worth it's uselessness in newer versions of OS X.

AppCleaner is, in my opinion, the best free app cleaner available. However... the best app cleaner overall is CleanApp.

I use AppCleaner and find it really good.

GGStudios always suggest to remove it manually via finder. I think he's got a guide somewhere.
 
In most cases, app removal software like those mentioned in this thread don't do a thorough job of finding and removing files/folders related to deleted apps. For more information, read this and this. If you just want to delete the app, drag the .app file to the trash. No other software needed. If you want to completely remove all associated files/folders, no removal apps will do the job.

The most effective method for complete app removal is manual deletion:
 
In most cases, app removal software like those mentioned in this thread don't do a thorough job of finding and removing files/folders related to deleted apps. For more information, read this and this. If you just want to delete the app, drag the .app file to the trash. No other software needed. If you want to completely remove all associated files/folders, no removal apps will do the job.

The most effective method for complete app removal is manual deletion:
Good advice. I usually double check the "related" files it found and then go looking myself.

Although some apps, like Chrome, install bizarre things that have no correlation to the app itself... but searching how to completely remove an app usually yields good results... especially if it's popular.
 
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