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If I was to rank them. These will be my top 3 apps for crypto
#1. Crypto.com
#2. Coinbase
#3. Bitmart
Use my referral link https://crypto.com/app/4up4wzxr8v to sign up for Crypto.com and we both get $25 USD :)
coinbase.com/join/s4zj?src=ios-link
https://h5.bitmart.com/invite-gift/en?r=qUXm9n&u=%2B1%20267****883