"Preloaded apps" refer to the software applications that come already installed on a device before you buy it, such as on your smartphone or computer. They are ready to use as soon as you start using the device. Full definition
HP keeps the number of preloaded apps on TouchPad mercifully low: Web (the browser for webOS), Email, Calendar, Messaging, Memos, Quickoffice (the webOS equivalent of the not - preloaded Apple iWork suite), Adobe Reader, Maps (not from Google, from Bing!) (pcmag.com)
And to further support the watch's purpose, the WSD - F10 will come with preloaded apps including MyRadar, RunKeeper, Yamap, and ViewRanger. (digitaltrends.com)
It seems Samsung is not content with the already long list of preloaded apps on its smartphones. (sammobile.com)