One-stop credit card service app. Blue Whale is an App software owned by Beijing Xiaoju Technology Co., Ltd. Its main function is: intelligent repayment; that is, it solves the problem of unable to repay credit cards in time and has no money to repay the principal intelligently. Maintain your card and increase your credit limit; beautify your bills, help you quickly increase your credit limit, and turn your credit card into a fixed asset that you can use at any time.