闪易 is a lifestyle app available on iPhone that introduces a new way of interaction through visible light. It utilizes LED flashing to create binary light signals, making interactions more secure. With the core functionality of "闪一闪" (Flash), users can use their phone's flashlight to emit light signals and complete various interactions in expanding scenarios.

Currently, 闪易 supports flash payment, shopping, public transportation, attendance, and door opening. It aims to become the most reliable interaction method after card and QR code interactions. The app offers features such as messages, where users can receive light-based notifications like door opening or payment notifications. It also provides various business scenarios based on light interaction, continuously illuminating your surroundings. The device list feature supports various devices that can utilize flashing light. The "我的" (My) section allows users to manage personal information and customize settings according to their needs, making their lives swift and convenient with just a flash.