Yes. You can start learning objective c on Coursera for free in two ways:

1. Preview the first module of many objective c courses at no cost. This includes video lessons, readings, graded assignments, and Coursera Coach (where available).
2. Start a 7-day free trial for Specializations or Coursera Plus. This gives you full access to all course content across eligible programs within the timeframe of your trial.

If you want to keep learning, earn a certificate in objective c, or unlock full course access after the preview or trial, you can upgrade or apply for financial aid.‎

To learn Objective-C, start by familiarizing yourself with the basics of C programming, as this is the foundation of Objective-C. Next, enroll in online courses that focus on Objective-C, such as the Foundations of Objective-C App Development. Practice coding regularly by working on small projects or exercises. Engage with online communities or forums to seek help and share your progress. Finally, consider building a simple app to apply what you've learned and gain practical experience.‎

Typical topics covered in Objective-C courses include the syntax and structure of the language, object-oriented programming principles, memory management, and the use of frameworks like Cocoa and Cocoa Touch. Courses often include practical exercises that involve building applications, working with user interfaces, and integrating APIs. Additionally, you may learn about debugging techniques and best practices for writing clean, maintainable code.‎

For training and upskilling employees in Objective-C, the Foundations of Objective-C App Development course is an excellent choice. It provides a structured approach to learning the language and its applications in app development. Additionally, organizations may consider offering a combination of courses from related specializations, such as the C Programming for Everybody Specialization, to ensure a well-rounded understanding of programming concepts that support Objective-C development.‎