Oppen is a utility application designed for iPhone users, offering a streamlined approach to accessing various entry points without the need for physical keys. With this app, users can gain keyless entry to buildings such as their homes, offices, and schools, as well as gates and barriers equipped with the Oppen system. The app allows for hassle-free access management, eliminating the need to search for key fobs or contact colleagues for access cards.

One of the standout features of Oppen is the "hands-free" functionality, which enables users to open doors without taking their phones out of their pockets. Additionally, the app offers guest access, allowing temporary entry for visitors or service personnel. Users can easily configure their access points with just a couple of clicks, and a two-month trial period is available for new users to explore the app's capabilities.