HyperTrack - Build logistics apps that feel like the future
Magnet Window Manager - Magnet Developers
ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
Stay for OS X - Keep windows in their place
LocationAPI - Instantly locate any device w/ WiFi, celltowers & IP address
uBar - The Dock replacement for the Mac.