The OAN, or Open Application Network, is a public infrastructure that creates a design space for Open Applications, or programs that put users "back in control" and are universally accessible across platforms.
The OAN platform offers APIs, templates, and documentation to accelerate the creation of Open Apps for developers.
The network is secured with a type of consensus algorithm similar to Delegated Proof of Stake. However, users can not only delegate their tokens, but also computational resources.
The AION token is used in delegating and staking, as well as a form of payment for services the network provides.