Big Text Display is an iPhone utility app developed by Kathryn Gonzalez, available for free. This app allows users to write messages in large fonts for easy visibility. It serves as a useful tool for sharing messages from a distance, even in noisy environments. By utilizing speech synthesis and audio transcription, it caters to accessibility needs effectively.

Moreover, Big Text Display offers a unique feature where users can shake their device to flash the message, attracting more attention, especially in challenging visibility scenarios. Additionally, users can save their favorite messages by double-tapping, providing quick access to frequently used messages. With a list of favorites and easy swipe access to recent messages, this app enhances message visibility and accessibility.