ArcGIS API for JavaScript vs. ClustrMaps Widget
Take a look at this side-by-side comparison of ArcGIS API for JavaScript and ClustrMaps Widget.
At a Glance
ArcGIS API for JavaScript
About ArcGIS API for JavaScript
ArcGIS API for JavaScript is a tool used to embed maps and tasks in web applications.
ClustrMaps Widget
About ClustrMaps Widget
ClustrMaps widget is a visitor tracker, designed for general web and blog use.