You will need to contact the company's customer care service. This is not the easiest way to get things done, as you might have to wait for a while before being connected to an agent. However, they give amazing support and might even offer you a discount to convince you to retain your membership.
If you really want to end your membership despite the offer, you can let the agent do the Audible cancel on your behalf.
You cannot terminate your membership via the app. The official cancellation method requires you to use a computer. However, if you do not have access to one, your trial period might lapse and cause an automatic deduction on your credit card.
For both Android and iOS phones, follow these steps to cancel your membership:
- Log in to your account on a web browser
- Click on the 3 vertical dots at the top left of the page
- Select “my account” on the list that pops up
- Select “view membership details”
- Change the page layout to desktop mode using the vertical dots on the top right
- Select “request desktop site”
- Zoom in to get a clearer view of the page
- Select “cancel membership” and follow the given prompts