When choosing an iOS app development company, asking the right questions is crucial to ensure a successful partnership. Start by inquiring about their experience and expertise in iOS development. Check their portfolio to assess the quality of their previous work. Discuss their development process, technologies used, and adherence to timelines. Ask about their approach to user experience (UX) design, post-launch support, and app maintenance. Understanding their communication practices and cost structure will help you make an informed decision and ensure your project meets your expectations.