What kind of information is used by the apps are:
Global Positioning System(GPS Data)
GPS is with the geosynchronous satellites. Originally, these were for military purposes on the coldwar era. They correctly tracked the location of ballistic missiles. After the coldwar ended in the end of 1990s, countries spread the use of the satellites to the commercial uses. Therefore, the information is very precise. This was mainly installed to the automotive navigation system for cars before. Now mostly every smartphone has it.
WiFi ID/IP Addresses
If you use the Internet, you never fail to use with IP addresses. IP addresses indicate some important information: who the administrators/users, and where the locations are. When you establish the Internet connection, the information is provided for the network. WiFi ID is also the usable information that indicates your locations. When Google created the street maps, they collected these information with the photos, and this became a huge problem in countries. Now many apps collect these IDs when you use. Users mostly automatically provide these information.
Phone ID
Your phone ID is one of the blind points for detecting your locations. Your phones have some specific ID numbers. One of them is your phone number. When you call, your phone connects near the base station and establish the phone call between your phone and the system. Each base station has each location ID. It can calculate the distance between your location and the base station. Especially, if you are with 3G phones or newer, your phones can track multiple base stations. Therefore, your phone precisely indicate your locations with GPS.
For the reasons, if you are with your smartphones, you have not lost your ways in most of Ecumene where people can live. According to NORAD ( http://www.noradsanta.com/ ), they can track Santa Claus because of these systems.
"Trepak(Russian Dance)"
(From Tchaikovsky's Nutcracker Suite)
Sochi Olympics comes soon. According to media, they had a lot of troubles for the torches, and also media indicates the bribery of high officials. The construction progresses also delayed, but finally, the games open on February 7, 2014. I checked about Sochi on the Internet, but it's difficult to find the information in English. However, using these map apps, we can travel around the resort town Sochi before the Olympic Games come.
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