For most Android versions:

  • Go to the "Settings" option for your device.
  • Scroll down to the "Device" category.
  • Find and click on the "Apps" listing.
  • Find and click on the App icon/title.
  • Name of the App should be shown in the upper-left corner.
  • The Version Number should be shown immediately below the title.
  • Additional information may also be shown here, including Permissions, Last Date updated, etc.

This information can be very beneficial, and often absolutely necessary when troubleshooting issues.

Note: This is also the screen you will go to if you need to "Clear Cache", "Clear Data", "Stop", or "Uninstall" the App.