What is NFT? Well, in a few words, NFT (non-fungible token) is a unique unit of data stored on a digital ledger. NFTs can be used to represent items such as photos, videos, audio, and other types of digital files. Some NFTs were sold for over $60 million. This is a hot trend in 2021 and it’s only going to get bigger. There are not many iOS apps around NFTs, so you can be one of the early iOS developers to launch an NFT Marketplace app, having access to the largest database of NFTs via OpenSea APIs.