What are two examples of network applications?

As a keen observer of the cryptocurrency and finance landscape, I'm curious to understand the broader context of network applications. Could you elaborate on two specific examples of network applications that are currently being utilized in the industry? I'm particularly interested in how these applications are shaping the way we conduct transactions, manage assets, and interact with the blockchain ecosystem. Your insights would be invaluable in helping me gain a deeper understanding of the role of network applications in the crypto and finance world.