Get Kindle Unlimited free for 3 months with this Prime Day deal: Final hours

Amazon is offering Kindle Unlimited free for the first three months ahead of its October Prime Day sale, according to ZDNET. The promotion lowers the cost from the service's usual $11.99 per month, saving $36 over the promotional period.

The offer is available to new Kindle Unlimited readers and select returning ones. After the three months, subscribers are automatically charged the full $11.99 per month plus taxes, though ZDNET notes the subscription can be canceled at any time before that charge.

Kindle Unlimited provides access to a library of more than 5 million digital books and thousands of audiobooks, including recent bestsellers, popular series and classics, per ZDNET. Titles cited include The Fourth Wing and The Hunger Games series, along with novels from authors such as Colleen Hoover and Frieda McFadden.

ZDNET reported that the deal runs through Amazon's Prime Big Deal Days sale, which ends Oct. 7, and that price drops on Kindle devices are also expected during the October Prime Day event next week.