Meet the Dot Pad: a tactile braille display that works with your iPhone and iPad. It is compatible with iOS 15.2 or later and supports VoiceOver. Blind & low-vision users can rely on it to render text and images from their phone/tablet on the display instantly. The Dot Pad enables users to get a better feeling on images on their screen. It has an API for developers to come up with their own tactile apps.
The Dot Pad is currently available to early adopters. You can find out more about it here.