I work at FullStory and could speak a little more about this as I used Mixpanel extensively at my last company. First, I’ll post the response(s) from our Product Hunt listing today, and then add my own thoughts:
FullStory actually has a powerful Mixpanel integration if you wish to use both tools in tandem (and because the tools don’t really compete with each other). Mixpanel requires a lot of instrumentation in order to start collecting data but once it’s up and running, the focus is on deep, highly customized analytics (funnel building, a/b tests, etc).
FullStory captures all the events your customers are doing on your website or in your product so that you can search for any event (no instrumentation required), get some big picture analytics on that event (like how many people have done it, who they are, what the trend is like over time etc). Then, you can dive in and watch those customer’s sessions, to see what their experience was like - where they struggled or hesitated etc.
FWIW, we see Mixpanel as an entirely different category of analytics tool. In fact, we have a number of customers that use both FullStory and Mixpanel…so much so, that we built an integration between the two platforms!
Hope you’ll take fullstory for a spin and let us know what you think.
My own insights don’t differ much from the answers above, but I’ll just further emphasize that MixPanel is great for an aggregate view of your customer data, while FullStory provides a lot more color about that overall experience.
The ability to detect an unusual (or possibly unwanted) trend at a macro level in Mixpanel and then use FullStory to see and filter on a specific action during that user’s session is incredibly powerful, especially when trouble-shooting UX issues or working in customer support.
In short, the two tools complement each other quite well. Hope that helps!