Does the apple support cryptocurrency in the new app development?
About cryptocurrency
There are new limits on Appstore, to restrict crypto currency apps:
Read this article: h ttps://www.techradar.com/news/apple-bans-cryptocurrency-mining-from-app-store
Hope that answers your question.
Apple can help with crypto is the storing of private keys and seed phrases in iCloud tied with their multi-factor authentication.
Apple App Store is allows cryptocurrency wallet app example Trust Wallet App