title: Android Vitals. "Session" and "crash free users"
body: <p><br/>
  Hello, everybody! <br/>
  I have some questions to Android Vitals. <br/>
  What is "session" mean? Maybe "session" in Android Vitals is equaled to "session" in Crashlytics? Or "session" is equaled to "session" in Google Analytics? <br/>
  I want to understand concept "session" on an example. I use application within 20 minutes. After that, I use other applications within 2 hours. After that, I use my application within 30 minutes. And after that, I block my phone and don't use the phone until the end of the day. How many sessions will be as a result?<br/>
  Another question. How does Android Vitals calculate "crash free sessions"? I use my app within 5 minutes and after that, there is the crash? But the app is restarted in 10 seconds. How many sessions will be and how many sessions with crash will be a result? <br/>
  Can I have the opportunity to calculate "crash free users" in Android Vitals independently? And I can't find total numbers of sessions?</p>