Questions to Ask
Technical Stack
Are you using swift or objective-c in the project?
What framework do you use for data persistent layer?
Do you guys do UI in code or storyboard?
What practice you use to avoid some pitfalls of using storyboard in a larger team?
How much time do you spend on testing?
Learning Opportunities
Is there like any opportunities to learn something out of your job scope?
The team
How big is the team, how it is structured?
The experience level of the team, junior or senior?
Career Growth
Is there any career growth opportunites? e.g I want to be a team lead, how do I achieve that?
Product
Download the app and do some research, ask questions about it?
What are you guys currently working on ?
Where's the product in its lifecycle ?
Most maintainance or implement new features?
What's your biggest challenge working on the product?
What kind of architecture do you guys use?