Download of World Population 11.50 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the free program is Opera widgets.
The most popular versions among World Population users are 11.5, 11.0 and 1.0. We recommend checking the downloaded files with any free antivirus. World Population is included in Internet & Network Tools. The default filename for the program's installer is World Population.exe.
From the developer:
Opera widgets gives you the possibility to see the number of people on the earth with one of the latest widgets: World Population. You will be able to see in what rate the number of people grow second after second. This widget is available only on opera browser.
You may want to check out more software, such as World Community Grid - BOINC for Windows, The Mana World or Populous MatchMaker, which might be similar to World Population.