MACMAGNA  Perhaps we are not using the same version because the behavior you describe is similar to the one used in the previous release v.1.11 not in v.1.12.

In Uninstaller 1.12:

- "Save" just scan and save the item state.

- "Compare" just scan and compare against the saved state.

and:

- "Save" DO NOT compare after the scan.

- "Compare" DO NOT save any state.

Please let me know if the version you use really works differently.  
(Version 1.12)

MACMAGNA  Unlike previous versions, Uninstaller 1.12 use a different behavior to do its job.

The new uninstall process:

1) Select your main disc/folder and do just "Save" (this create/update the saved state)

2) Install your new app, use it, create documents, etc...

3) Do "Compare" (this create the current state and compare it to the saved state)

Now Uninstaller show you New, Modified and Removed items since 1)

4) Review New items and delete unwanted files.

That's all.

Optionally, you can update the saved state by doing "Save" again after 4) if you consider to compare later your disc/folder from this point.  
(Version 1.12)

MACMAGNA  If you "Scan and Save" just before the install and then "Scan and Compare" just after the install, as mentioned in the help, no system files could appear in the "New items" found excepted if you do this while MacOSX is updating itself, which is not a good idea.

To avoid catching unwanted files and to reduce, as close as possible, the found items to these relative to the installation process, i recommend to close all other applications before monitoring an installation with Uninstaller.  
(Version 1.10.5)

MACMAGNA  Yes sometimes applications could be uninstalled by just trashing them to the trash and sometimes not. I think you have to post the same comment for the popular AppZapper ( http://www.macupdate.com/info.php/id/20306 ) which do exactely what you suggest for $12.95 and like you miss some files, package receipts, custom libraries, private frameworks, tmp files, log files, hidden files, etc... when "uninstalling" an application. Uninstaller do more than just searching for some name related files in some basic folders: Uninstaller compares file system hierarchies item by item and can also be used to find changes in any folder or disk of your choice between two dates.

Additionally, i suggest you first download and test the shareware before posting a comment on it. This does not apply only to Uninstaller, of course.  
(Version 1.10.5)

MACMAGNA  You'll get it in the next release.  
(Version 1.4)

MACMAGNA  This will be solved in the next update  
(Version 1.10)

MACMAGNA  Seems that launching the app with root privileges confuses RosettaTest.  
(Version 1.10)

MACMAGNA  Some PPC users have reported "Error (1007) creating CGSWindow" when launching FileFinder 1.3.4 on a PPC Mac. This could be solved by trashing the FileFinder preferences file located at: "~/Library/Preferences/FileFinder.plist" then relaunch FileFinder. Sorry for the incovenience.  
(Version 1.3.4)

MACMAGNA  There's no link between MacMagna and Neometricsoftware, FileFinder and Catalog. Just try FileFinder and compare speeds, searches, features, etc... Read the reviews for FileFinder on VersionTracker too ( http://www.versiontracker.com/dyn/moreinfo/macosx/28588 ).  
(Version 1.4)

MACMAGNA  Bonjour,

Si vous avez un problème avec FileFinder il vaut mieux s'adresser directement à moi plutôt que de poster une revue douteuse sur MacUpdate. Si votre disque fait de drôles de bruits quand une application tente de lire à partir de celui-ci il est fort probable qu'il ai un problème et risque de vous lâcher sous peu. Pour votre gouverne sachez que FileFinder n'utilise rien que des fonctions standards pour effectuer son travail et ne peut en aucun cas endommager un disque dur dans la mesure où il ne fait, par ailleurs, que lire le contenu du catalogue de celui-ci pendant une analyse. De là à proposer de mettre le programme à la poubelle, je trouve que vous y allez un peu fort.

MacMagna, concepteur de FileFinder.  
(Version 1.3)

MACMAGNA  FileFinder uses standard functions to scan disks so if you main disk makes strange noises when an app read from it, perhaps it's time to change it and put IT, to the trash.  
(Version 1.3)

MACMAGNA  Thanks for your reply Guntis.

I've located the catalog database in the "~/Documents" folder for the reason you notice. Most users don't know that applications store important files in the "~/Library/Application Support/" folder and never backup this folder.

FileFinder 1.3 (available soon) will introduce a multi-database support with custom default database location and network sharing, so everybody will be satisfied.  
(Version 1.2.6)

MACMAGNA  If you have a problem using Uninstaller, please contact the developer.  
(Version 1.9.5)