What are some alternatives?
When comparing BigDataCloud.com and ipstack, you can also consider the following products
IP2Location - IP2Location is a leading provider of IP intelligence service.
ipapi - Web analytics with IP address lookup and location API
IP-API.com - Free IP Geolocation API - lookup any IP address
WIPmania - WIPmania provides a number of free products and services based on WorldIP geolocation database.
ipgeolocation.io - Free IP Geolocation API and Accurate GeoIP Lookup Location Database
GeoNode - Open Source Geospatial Content Management System