https://techcrunch.com/2022/04/07/nft-app-sticky-kicked-out-of-apples-app-store-after-operating-for-months/

Apple’s approach to NFT apps is still something of a gray area. The company permitted NFT marketplace OpenSea to launch an app, but only for browsing NFTs — not for buying and selling them. The same goes for Rarible’s iOS app, which is described as an NFT browser for “viewing” blockchain collectibles. Other NFT apps offer similar discovery features. But the lack of official guidelines around NFTs on iOS has made it hard for app developers to know where the line is in terms of what’s permitted and what’s not.

One developer who experienced bumping up against the line first-hand is Alan Lammiman, founder of Daily Apps.