Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.

grep - grep is a command-line utility for searching plain-text data sets for lines matching a regular...

Zenly - Zenly is a GPS tracker to locate your friends in realtime.

PowerGREP - Quickly search through large numbers of files on your PC or network using powerful text patterns to find exactly the information you want. Search and replace with plain text or regular expressions to maintain web sites, source code, reports, ...

OwnTracks - Cross-platform location sharing

dnGREP - dnGrep allows you to search across files with easy-to-read results.