Both are planned, both have long threads here in the forum 
Apple has a non-disclosure agreement, so not a lot can be announced really until it is ready… but it is being worked on.
As for overdrafts, there was a Preview announced and a very small test group were invited to try them out, but other than that they haven’t rolled out as yet. We are told they are coming soon, however. I has also been announced on the blog very recently that more and more customers will be invited to try them before the year is out.
Slowly open up overdrafts
We began testing on iOS a few months ago with very small numbers of people. The Monzo Android app now supports overdrafts, so we’ll be testing them with more and more people over the coming months.
To ensure we get overdrafts right, we want to take this slowly, so overdrafts won’t be available to everyone to start with. We’ll be in touch with people as we roll them out to let them know.