The most obvious thing only QA Analytics can do is reproduce videos. This cannot be done with Google Analytics by any means.

There is also a big difference in the ease of setup. If you were to use Google Analytics to measure scrolling, it would be difficult to set up unless you are an expert, but with QA Analytics, you just install a plugin and it automatically measures the scrolling.

However, this question is not a question of which one to use. Rather, we strongly recommend that you use both.

It may not be a good analogy, but this question is similar to the question, “Which is better for your health, a blood test or a urine test?

Both are important, but they have different purposes, and they teach different things. And since they are free, I think there is no reason not to use both of them.