Users with an active Plex Pass subscription have access to paid Plex apps for free as well as access to preview apps. The following (paid/preview) Plex apps can be accessed for free by Plex Pass subscribers:
Android
Active Plex Pass subscribers can make use of the standard “Plex for Android” app.
Note: The app is activated for subscribers by signing in using a Plex account with an active Plex Pass subscription. Non-subscribers can unlock the app with a simple, one-time purchase.
Related Page: Google Play: Plex for Android
Related Page: Amazon: Plex for Android
Related Page: I have Plex Pass, so how do I use Plex for Android for free?
Related Page: Unlocking or Activating Plex for Android
iOS
Active Plex Pass subscribers can make use of the standard “Plex for iOS” app.
Note: The app is activated for subscribers by signing in using a Plex account with an active Plex Pass subscription. Non-subscribers can unlock the app with a simple, one-time purchase.
Related Page: App Store: Plex for iOS
Related Page: Unlocking or Activating Plex for iOS
Plex for Windows / Windows Phone
Active Plex Pass subscribers can make use of the standard regular Windows / Windows Phone Plex apps.
Note: The app is activated for subscribers by signing in using a Plex account with an active Plex Pass subscription. Non-subscribers can unlock the app with a simple, one-time purchase.
Related Page: Microsoft Store: Plex for Windows