Ideas, welcome, thanks!
Yeah, like Robin mentioned, I think it depends on what you're looking for.
Here we track how many free users convert to paid by the end of their free trial. We've been doing some A/B testing and giving different groups access to different features of our full accounts.
I may be wrong, but like others, I'm assuming you mean which events should a startup track?.
Often times when I talk to a developer or digital marketer who is implementing the analytics for an app, this question comes up. "Which events should I track?" Although the response, "whatever you think is important," is technically correct, there are a few rules you can go by:
For each metric above, try to map out the user experience flow that leads up to the action being tracked. All of these as events should be tracked as well, that way you can see which points users are dropping off. These will likely involve a user visiting a web page, providing some input, clicking buttons, etc…
All of these can be tracked with Mixpanel, on the free tier. A popular paid feature of Mixpanel, cohorts, makes this a breeze.
What are some other common user actions to track?
Our MyLibrarian mobile and web app is still pre-launch, and so we also use HelloBar and MailChimp for newsletter and app beta tester signups on our related website IntheStacks.tv. GoogleAnalytics tracks our monthly site views.
We have a list with links to Amazon that we update weekly, and this is where we have installed Mixpanel. The list mimics the actions of our app. And we can track how many clicks to possible purchase, which is helpful. But it is the best user action for us to track right now?
I'm just brainstorming here - once the app is launched we'll track more traditionally. What else as an early stage startup could we track? Thanks!