From their mail:
now in DropGalaxy Payout Time (option) Added. +its important for every users who earns from us so Go and check which option you want to choose.Transaction Fees depends on your Payout Time settings.1st option: Instant Payout Sameday (+fees): Indian Payout (IndianBank, Paytm, GooglePay, UPI) fees is $0.50
Other international payout method fees depends on %(percentage) you can check in their faq.
2nd option: 20days delay Payout No fees.