title: Android studio used to generate 1 release apk, now it's 3. What does each of them do?
body: <p>So I haven't released in a while. Android Studio used to generate only one apk, which was a release version. This time it generated 3 like the following: </p>
  
  <pre><code>1.app-armeabi-v7a-release.apk
  2.app-x86-release.apk
  3.app-universal-release.apk
  </code></pre>
  
  <p>I'm going to assume that I want to use the universal one for the Google Play Store.<br>
  But can someone break down the specifics of each one? </p>