Xplanetfx is described as 'xplanet (by Hari Nair) is a great piece of software capable of creating renderings inside our solar system. To raise the quality of its output adding some graphical effects, it was a great candidate to link with imagemagick' and is an app in the Photos & Graphics category. There are more than 10 alternatives to Xplanetfx for a variety of platforms, including Windows, Mac, Android, iPhone and Android Tablet. The best alternative is TerraTime. It's not free, so if you're looking for a free alternative, you could try Desktop Earth or Xplanet. Other great apps like Xplanetfx are EarthView (Paid), EarthDesk (Paid), MeteoEarth (Freemium) and Living Earth (Paid).
TerraTime provides an amazing, interactive, real-time virtual Earth. Its globes and maps use current satellite imagery to simulate day/night, clouds, seasons, sun & moon; clock shows rise, set, twilight, & transit times for sun & moon.
You should run it as admin. Desktop Earth is a wallpaper generator. It will generate a high-resolution, accurate representation of the Earth. The imagery is based on NASA's Blue Marble Next and Earth's City Lights.