The Premium subscription is a way to access some extra features and support the project.
Custom Boorus is a way to use additional Boorus directly in the Rule 34 App.
For example, xbooru.net is one of many Boorus included by default once you subscribe.
This means that you can access all of xbooru’s content using the Rule 34 App’s sleek interface.
Here is a list of compatible Boorus and Booru Types. Feel free to see which ones work.
Tag Collections allows you to create lists of tags for easier access.
These lists of tags can be filters **of content that you don’t want to see.
Or simply bookmarks **of content that you would like to save for later.
You can apply Tag Collections directly in the search menu. Where you expected them to be.
There are many collections by default.
For example, there's one that includes most furry terms to act as a tag blocklist:
Save your favorite posts locally, so you can see them later.
Saved posts can be sorted by Booru, and searched through their tags.