You could have downloaded PortsNotifier 0.1.1 for Mac from our software library for free. The unique identifier for this application's bundle is org.xulei.PortsNotifier. The software belongs to System Tools. The most popular version among PortsNotifier for Mac users is 0.1. This free software for Mac OS X is a product of Eddy Xu.
From the developer:
PortsNotifier is a notifier for new macports (The MacPorts Project is an open-source community initiative to design an easy-to-use system for compiling, installing, and upgrading either command-line, X11 or Aqua based open-source software on the Mac OS X operating system) outdated programs.
It's kind like "Updater Manager" in Ubuntu, but it works for macports.
PortsNotifier is open source and free to use.
You may want to check out more Mac applications, such as Stora Desktop Applications, Myth II Public Beta 2 Universal or DriveGenius, which might be similar to PortsNotifier.