Amazon's GameCircle and Whispersync mobile games functionality has finally come to iOS, having previously only been available for Android titles.
is a group of community and engagement features that introduces achievements, leaderboards and the ability to sync games across Amazon Appstore, Google Play and the Apple App Store.
Meanwhile, Whispersync is a cloud-save service for mobile games that automatically resolves data conflicts between mobile devices and the cloud, and queues updates to support offline operation.
Developers interested in learning more should pay a visit to GameCircle's development resources
through Amazon's Mobile App Distribution site.