Localytics does that pretty well. In their funnel view, you can see, for each step in the funnel, it shows a comparison of users who went on to the next step of

Localytics does that pretty well. In their funnel view, you can see, for each step in the funnel, it shows a comparison of users who went on to the next step of the funnel vs. users who did not, and highlights a diff of their actions.