I'm trying to get my oauth2 android app verified by the google cloud console so more than 100 users can use it but I'm stuck on this part here:
What does this mean? Do I need to create a website for this? Is there a way to do it for free?
Thanks!!
CodePudding user response：
As john hanley said App Domain means the collection of information related to your website on a domain name you control/own
You are still required to enter this information even if you have an installed application that is not hosted on a website.Users of your application must still locate your company's or application's website and the information that contains your privacy policy.Simply point it to the application's home page on your company's website, along with a privacy policy page.A number of projects demonstrate the format of a GDPR-compliant 
App domain being your website, and the privacy policy being the page on your website where you have hosted your privacy policy. These two pages are critical to informing your users about your application. You can expect that google will review them. While you can have them in your native language it is good to also have a copy in English's so that Google can read it. I have heard from clients in the beginning at least that google required that they be submitted in English's.
Host a home page for production apps
Every production app that uses OAuth 2.0 must have a publicly accessible home page. Potential users of your app might visit the home page to learn more about the features and functionality that the app offers. Existing users might review their list of existing grants and visit your app's home page as a reminder of their continued use of your offering.
Your application's home page must include a description of the app's functionality, as well as links to a privacy policy and optional terms of service. The home page must exist on a verified domain under your ownership.
Do I need to create a website for this?
Yes, this domain must be registered by you, and must be hosted. So no there is no way to do this for free that i am aware of. Domain hosting is not free and neither is domain registration.
Is there a way to do it for free?
Hosting, Not that i know of. You should also consider depending upon the scopes your application is using Google may charge your for a security review of your application. This has to happen yearly.