Even though this is an older app, it's quite frankly... amazing. I wish the developer would continue development, but it still works in Snow Leopard. The only app that is similar to this is CleanApp, which has a monitoring daemon that lets you remove any modifications/files that a particular app has done. I use both, and I couldn't be happier. 5 stars. ^_^

I don't like to think of Uninstaller as an Uninstaller per say. It's a magical app that can capture a snapshot of every file on your system and save it as a state. You can then install something or essentially do anything with your system and then run a state comparison. Uninstaller beautifully displays every new file, every modified file and every deleted file since your original snapshot. Sure, it can be used as an installer but I use it to monitor exactly what a software installation does to my system so I can then delete every last trace of it if I want - right down to the hidden core system level.

I can't give this app enough praise. I've used it for years and it's never let me down. Love it!

Uninstaller is the ONLY stable (am keeping my eye on CleanApp) app uninstaller that lets you ensure you see EVERYTHING that an application installation puts on your hard drive. Trust me. Use this, see the items it shows you were just installed by an app and you'll realize that all the other purported 'app cleaners' do nothing but drag the app from your application folder and maybe find the odd ~/Library/Preference file and on a really good day a User cache file. It's interesting and useful to see the plethora of files (and where they go) some of these application installations scatter all over our hard drives. Can also be used as a re-installer and has uses beyond simple application file management.
Plus you get to try the other products in the MacMagna stable.

Maybe I am the only one but I think the new behaviour of 1.12 is very un-intuitive compared to how it worked before. Reasons:

1. The toolbar-buttons do other things than their label suggests.

2. "save" not only saves the state, but it does a compare again. Totally useless and unnecessary as I only want to actually "save" but not want to compare again.

3. It is not clear to the user that "compare" actually not only compares but also saves the new found state.

This is bad for several reasons. In my opinion, "save" should only be available in two cases:

1. There is no earlier state
2. right after a "compare" and only once.

"Compare" should really do only "compare" and no save at all. The reason? The user may only test try a comparison to see if anything has changed. He might decide to leave Uninstaller without saving, install something else and then make a computer which then would include the unsaved changes plus new found entries.

it's a real pain with people like THECAUSE, comparing apples with pears.
when reviewing a software, one would be supposed to knowing what they are talking about.
if it comes to seriously tracking down all new, deleted and changed files implied by an installation, you quietly can forget the whole palette of all other applications like CleanApp, Appzapper etc...
Uninstaller is the only working means of being notified about any installation process - provided you know to apply it correctly, i.e. doing an analysis and saving it before the installation begins.