Maybe there's a free app here that could do the job and save you a buck or two. And then again, maybe "somebody" found out that the app that they are selling has an alternative here and managed to mess up the link or the info (it is Wikipedia, after all). Also, maybe there just isn't one, or nobody has added info about that empty entry (there do appear to be a couple of those). List of open source software packages From Wikipedia, the free encyclopedia free software Portal This is a list of open-source software packages: computer software licensed under an open-source license. Software that fits the Free software definition may be more appropriately called free software; the GNU project in particular objects to their works being referred to as "open source." For more information about the philosophical background for open source software, see open source movement and free software movement. However, nearly all software meeting the Open Source Definition is also Free Software, so it is all listed here.