Can someone tell me what I am doing wrong?

I published a pretty small app about a year ago that was just a small financial widget for your home screen. Recently I added more in app functionality and graphs but left the widget part unchanged.

For some reason I am now getting even less installs and my active user count has dropped. Any idea why people who used it in the widget only days would suddenly leave?

The link is: https://play.google.com/store/apps/...