title: Strange drop in active installs
body: <p>I had 3 apps on the market for some time now. Two of them experienced a markable rise in active installations some weeks ago. One of them even had more active installs than downloads which was quiet surprising.</p>
  
  <p>However some days ago, the active installations dropped to the level before the rise. Here are the graphs:</p>
  
  <p><img src="https://i.stack.imgur.com/gii2V.jpg" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/cMtQ8.jpg" alt="enter image description here"></p>
  
  <p>Did someone experience a similar behaviour? And what's the reason?</p>