What is the difference between total installs and active installs in the Android market?

Question

What is the difference between total installs and active installs?

I have 90 total installs for my app and only 47 active installs. What does it mean?

Answer 1

Here are the official definitions for these terms

Total user installs - the total number of unique users that have ever installed this app. We only count one install regardless of how many different devices they installed it on. It includes the users who have later uninstalled the app.

Active user installs - the number of users who have the app currently installed on at least one of their devices.