have questions about the facebook groups app for IOS.

hi all,
I have a couple questions about the facebook groups app for IOS. One is, how well does it work with voiceover? and two is, is there push notifications for things such as people wanting to join a group, Etc? I have a group going, and I am finding it hard to keep up with people wanting to join. Any help would be appreciated. If this app does not support push notifications for people wanting to join groups Etc, is there an app that will? Thanks in advance.