I am part of the research team in the bank specifically focussing on Design Research. A large part of my job is doing qualitative research for a large product area. We use Lookback to chat with our research participants remotely on both, mobile and desktop.
We heavily rely on Lookback for mobile heavy interviews since one of our main product area is our native mobile app.
We also have our stakeholders watch interviews live and engage in the chat room to discuss observations during the session.