Your application can be published on a subdomain provided by Softr, custom subdomains or your own custom domain. Subdomain gets assigned to your application by default, right after you create the application.
When you are on a paid plan, you can publish your application to your own custom domain (yourdomain.com). Custom domain boosts your credibility and helps to build up your brand.
Here are the steps to follow:
In the application Studio, go to Settings > Domains page, and add your own custom domain in the following format "yourdomain.com". It will also add the full domain "www.yourdomain.com" by default.