No, we will not build a native app, as it would create a single point of failure in the app stores. However, Swarm City will be accessible through native apps like status.im.
The Merkle reports
"Decentralized applications also known as DApps, are the next logical step in the evolution of technology. A decentralized application is similar to a smart contract on the Ethereum blockchain, yet it also has key differences. Unlike smart contracts, Dapps do not need to revolve around finance but can leverage blockchain technology for any purpose that comes to mind."
NEWSBTC explains it like this
"Decentralized apps are a new type of software program designed to exist on the Internet in a way that is not controlled by any single entity. Where bitcoin is a decentralized value exchange, a decentralized application aims to achieve functionality beyond transactions that exchange value. Many types of decentralized apps are starting to emerge as blockchain technology continues to progress. More companies and individuals are seeing the potential for what can be achieved in decentralizing not just money but almost any type of computing imaginable.
Decentralized apps potentially represent the next generation of computing. In a completely decentralized world all things occur using peer-to-peer networks and the idea of centralized entities are non-existent. This distributed future is still being designed and built but the early stages of development are looking promising."
If you want a hardcopy to dig into this publication helps explain decentralized apps.