Starting a podcast on Apple for free is a relatively simple process. You can start by creating your podcast content and recording it using a microphone and a recording software. Once you have your content, you need to sign up for an Apple ID if you don't already have one.
Next, you must register your podcast on Apple Podcasts Connect and submit your podcast RSS feed or audio file. You will also need to include information such as the title of your podcast, description, categories, and artwork. It is important to note that the artwork submitted must be at least 1400 x 1400 pixels, in JPG or PNG format, and must not include any contact information or website URLs.
Once your podcast has been submitted and approved, it will become available on the Apple Podcasts platform, and listeners can subscribe to and even leave ratings and reviews for your podcast. Keep in mind that while starting a podcast on Apple is free, you may need to invest in equipment for recording audio and promoting your podcast for optimal reach and growth.