Google Analytics vs Google Tag Manager: What are the differences?
Developers describe Google Analytics as "Enterprise-class web analytics". Google Analytics lets you measure your advertising ROI as well as track your Flash, video, and social networking sites and applications. On the other hand, Google Tag Manager is detailed as "Quickly and easily update tags and code snippets on your website or mobile app". 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 user behavior across your sites and apps, and the intuitive design lets you change tags whenever you want.
Google Analytics belongs to "General Analytics" category of the tech stack, while Google Tag Manager can be primarily classified under "Analytics Integrator".
According to the StackShare community, Google Analytics has a broader approval, being mentioned in 15339 company stacks & 2444 developers stacks; compared to Google Tag Manager, which is listed in 431 company stacks and 73 developer stacks.