Amazon Prime members and free Prime trial users can get two months of Kindle Unlimited for $0.99 at Amazon. This offer is only available for Amazon Prime members who have never used a Kindle Unlimited free trial or subscribed to the service. After two months, the subscription will auto-renew at $9.99 per month, but you can cancel at any time. A Kindle Unlimited subscription gives you access to over one million e-books, magazines, and Audible audiobooks. Note: A 30-day trial is also available, but these offers do not stack, and you will only be able to choose one promotion per account. There is no sales tax.