I was surprised by the amount of mobile app analytics tools out there. It's hard to pick one, even if you just need a specific feature. And although they use different terms, most support the same basic feature set.

I ended up doing a comparison table of the ones I found:

Notes:

• I focused on general analytics features, like real-time information, user flow and custom events. There are more tools focused on stuff like marketing automation, app store analytics, referral tracking...
• I only included tools I could signup right away, and was able to find pricing information. No request demo or trial contact forms.
• I didn't try all the tools, so some information might be inaccurate.

There wasn't any Android-only tool. It seems once you got the analytic back-end developed, supporting another mobile platform is easy.

Do you know another tool I should add to the table? Leave a comment below, together with your feedback.

Update (July 2015): Answers' custom events have come out of beta and are now available to everyone.