iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Amazon Officially Announces 'Kindle Unlimited' E-book and Audiobook Subscription Service
The Kindle Unlimited service includes high-profile Kindle titles such as The Hobbit and the Harry Potter series as well as popular audiobooks like The Hunger Games trilogy and Life of Pi. The service includes popular Kindle features including Highlights, X-Ray and Whispersync for Voice, which allows users to switch between listening and reading a book without losing their place.
Amazon is offering Kindle Unlimited with a 30-day free trial that also includes a free three-month membership to the full Audible service with access to more than 150,000 audiobooks. After this trial period is over, subscribers must pay $9.99 per month for the Kindle Unlimited service and can opt to continue the additional Audible membership for $14.95 per month.