Along with the Adoption and Finance reports, Windows Store Developer page gives you Quality reports as well. These Quality reports help you improve the quality of your apps by tracking and investigating any crashes, hangs, or exceptions in your app.
With these reports, you can:
- Understand the quality of your app over the different versions that were published to the Store. This tells you if customers of your app are having a better experience in successive versions.
- Improve the quality of your app. You can improve the quality of your app by knowing about and understanding the top failures (as seen by your customers) in the latest version published to the Store. Understanding the top failures enables you to fix them and publish updates to your app in the Store.
Read more on it here.