Pendo Introduction - Track user interaction

Overview: Pendo tracks usage and has a help/html wizard to help users work on your application via product analytics.  

Info: Pendo can be implemented using Google Tag Manager.

Google Tag Manger

 "Tag Manager gives you the ability to add and update your own tags for conversion tracking, site analytics, remarketing, and more. There are nearly endless ways to track activity across your sites and apps, and the intuitive design lets you change tags whenever you want." https://marketingplatform.google.com/about/tag-manager/benefits/

Tag manager is useful for adding 3rd party tags/scripts.