It is impossible to provide high quality of an application without updating it on a regular basis. At the same time you need to see what are the strengths and, more importantly, what are the weaknesses of your app. For this reason it is a good idea to use analytics in your app.

There are several tools and services which provide a convenient way to gather analytical data:

1. Flurry (maintains all platforms)
2. Google Analytics for applications (maintains iOS and Android)
3. Localytics (maintains all platforms)

The integration of an analytical platform takes a few minutes, and then you will be able to get a lot of valualbe information about the usage of your app.