Is there another solution?
Recently, I've started homebrewing my own solution using Firebase (www.firebase.com). I've found it extremely straightforward and am enjoying having more control over my analytics data.
You'll want to acquaint yourself with custom segments if you take this approach too.
custom segments (from the google knowledge base):
this blog post does a better job of explaining how to use them though imho:
If it's about understanding the users of your app and what they look like, GA probably wouldn't be a good choice even if you didn't have a single page app because it's tailored for tracking activity across all users, not activity broken down by user. (For instance, it's good at answering the question, "Which feature gets the most usage?" not, "Which feature is used by the most people?" and that's an important difference.)
Many analytical tools claim they can answer the latter question, but look for example use cases to make sure they're answering the right question. A little research up front can save you the time of integrating a service only to find it doesn't answer the questions you want answered.