Hi Rob, actually it depends on what do you want to measure on your web app.

If you just wants to measure on how may people visit your web, you can just add the page views tracking method/function upon page initialization.

But you need to do more set up if you want to measure something more complex like:

- To measure how many people visits per page that you have on your web app bcs each page have their own path name.

- To measure your customer order conversion. You might need to use combination of page views and event tracking. E.g. for ecommerce website: page views on your product page -> checkout event on click checkout button -> page views on check out -> submit event on submit order button etc.

Hope this clarifies your question !

Cheers,

Marco