Glitch recently decided to make fully private apps meaning you can have private code and the website can be private without making a authentication system.

This is what it looks like:

Source: this post, blog.glitch.com

Go see Glitch's post about it.

Welcome to the Glitch API blog! We post announcements from the Glitch Team and share intresting projects. You can also write for the blog by creating a new post here. Please see one of the existing posts here to get an idea of the layout of a post.