HOWTO: Uninstall eWallet for Mac
eWallet for Mac does not have an uninstaller program. To remove the program from your Mac, just drag its icon from the Applications folder into the trash.
The eWallet preferences files have to be deleted separately from the application itself. They won't harm your system if you do not delete them. If you do want to remove them, close eWallet, open /Users/YourUsername/Library/Preferences and drag the two com.iliumsoft.eWallet.* files to the trash.