ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
Adobe Learning Manager - Adobe Learning Manager (formerly Adobe Captivate Prime LMS) is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.
ipapi - Web analytics with IP address lookup and location API
Udemy - Online Courses - Learn Anything, On Your Schedule
ipgeolocation.io - Free IP Geolocation API and Accurate GeoIP Lookup Location Database
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!