HyperTrack - Build logistics apps that feel like the future
App Annie - App Annie is a marketing analytics tool available for apps of all kinds. With App Annie, you can track sales, traffic, and a variety of other factors pertinent to monitoring an app's trajectory.
ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
AppFollow - AppFollow is an integrated solution that makes monitoring, analyzing, and elevating your app's reputation easy.
LocationAPI - Instantly locate any device w/ WiFi, celltowers & IP address
Sensor Tower - Sensor Tower is a platform for app store optimization and app industry intelligence.