Define Objectives and Features-:

Clearly define what you want your app to achieve and what features it should have. Consider how these features will translate from your website to a mobile app interface.

Choose Development Approach

Native App Development.

Develop the app specifically for iOS using languages like Swift or Objective-C. This approach provides the best performance and access to all iOS features but requires separate development for other platforms.

Cross-Platform Development.

Use frameworks like React Native, Flutter, or Xamarin to build the app for multiple platforms (iOS, Android, etc.) using a single codebase. This approach can save time and resources but might have some limitations in terms of performance and access to platform-specific features.

Design the User Interface:

Create wireframes and design mockups for the app's user interface, ensuring it's intuitive and easy to use on a mobile device.

Develop the App:

Implement the app's functionality according to the defined features and design. If you're going for native development, you'll be coding in Swift or Objective-C using Xcode. For cross-platform development, you'll use the chosen framework along with appropriate tools.

Integrate with Website Backend:

If your app needs to interact with your website (e.g., fetching data, user authentication), ensure that it can communicate effectively with the backend systems.

Testing:

Thoroughly test the app on different iOS devices to ensure compatibility and identify any bugs or issues. You can use emulators/simulators as well as real devices for testing.

Deployment:

Once the app is ready and tested, submit it to the Apple App Store for review and approval. Ensure that you comply with all App Store guidelines and requirements.

Maintenance and Updates:

Continue to monitor and maintain the app after its release. This includes fixing bugs, adding new features, and ensuring compatibility with new iOS versions.

Promotion and Marketing:

Promote your app to your website users and target audience to increase downloads and usage. Utilize various marketing channels such as social media, email newsletters, and app store optimization (ASO) techniques.