Can I have my app accept cryptocurrencies or not?

So Twitter is now allowing users to send bitcoin tips one another, I know opensea can allow users to transact using ethereum to sell and buy NFT. My question is very simple, me as a independent developer, do I have the same rights for example create my application allowing users to send and receive cryptocurrencies or not? Are apple still forbiding and rejecting any app won't use apple payments?

Can I have my app accept cryptocurrencies or not?
 
 
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