Does apple allow to use third party payment integration?

Hello All,

I am developing an application in which i am providing wallet facility, where user can buy coins and they can also get coins using rewards and scrach card. if user want to buy coins he need to purchase using is bank account (with real money), 1 rs = 1 coin. and if he want to withdraw coin to their bank account it will be 1 coin = 0.80 rs. User can also share or give their coins to other users.

My question is does apple allow me to use third party payment integration in this situation?
we are not deduct much commission from users when they withdraw coins in his bank account. if i use IAP then 30% will be transaction charge by apple which will make impact on user's purchase coins.

Please guid me what should i do in this situation.
Thanks in advance.
Does apple allow to use third party payment integration?
 
 
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