It'd be great if Applevis had the following:

• Filter by Accessibility Rating: We should be able to filter the apps added to the app directory based on how accessible they are according to the ratings.
• Filter by Price: We should be able to view or filter out free apps, free apps with in-app purchases or paid apps.
• Filter by Keyword: We should be able to enter keywords and view the results that do (not) contain them, whether in the app name, App Store description, comments or elsewhere.

Note that most of these used to be accessible without even having to do any filtering and opening the app entry page but they were removed for whatever reason I've been wondering ever since.