Have you seen Saga [0]? They're an app for making private podcasts with people in your life but, it's free - they help you choose questions and then everyone can hear each other's answers. There is an app [1] for the tech savvy, but also they have a dial-in option for older users where they can just call from a landline and record that way.

[0] http://trysaga.com/

[1] https://apps.apple.com/app/saga-private-family-podcast/id150...