USGS
Equator offers Free Trial, but LocationIQ does not.
LocationIQ is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Equator is designed for Large Enterprises, Medium Business and Small Business.
Pricing for LocationIQ Starts at $50/Month whereas for Equator Starts at $30/User/Month.
Some top alternatives to LocationIQ includes CARTO, eSpatial, ArcGIS Online, Mapbox, Maptive, Geocodify, MapQuest, Geocode Earth, Mapify and PlacesAPI.
Some top alternatives to Equator includes eSpatial, ArcGIS Online, Map Business Online, vMAP, 21stCenturyGIS, 3-GIS, Agile GIS, ArcGIS Instant Apps and Geoconcept GIS.