How is console.developers.google.com different from appengine.google.com?

Question

Google Cloud has https://console.developers.google.com/ and App Engine has http://appengine.google.com. Are they interchangeable? Will http://appengine.google.com eventually become obsolete in favor of https://console.developers.google.com/? If I start using https://console.developers.google.com/ will I be unable to go back to http://appengine.google.com?

Answer 1

Jordan Fish from Google Cloud Platform Support gave me this answer:

https://console.developers.google.com is the next generation portal for managing all Google Cloud Platform projects. Currently you can manage many, but not all aspects of your AppEngine app from within the Developer's Console and there are some places where it will redirect back to the AppEngine admin console. You can use both without any ill-effect, just know that at some point (I am unsure of the timeframe) the admin console (appengine.google.com) will cease to exist.