Mobile app development isn’t a one-time activity. Once you’ve clearly written down the requirements, you can create a screen-by-screen layout design. What should be the features? Who are the target audience and what are the development platforms etc, are the queries that you need to ask your customer before app development. Unlock the rest of the questions to ask your customer before developing a mobile app.
When a customer and an app developer sit face to face, then developer should ask some questions with their customer related to their mobile app development.