Hey TTC! Nice to have you over here!
I don't really know how it works in the states so I'll let one of the other ladies answer that. Here, we only have midwives unless you are considered high risk pregnancy, but even then you're split between consultant and midwife. Unless you are high risk or there are complications during labour, you don't have a Dr present during delivery in the UK.
I'm not overly sure about apps, I've downloaded a few but haven't come to love one yet. There are a lot out there to choose from though.