Idle fish itself does not support installment payment, but it supports credit card payment. Users pay with Alipay and choose this credit card to realize installment payment, but the maximum amount of credit card is 500 yuan, beyond which credit card payment cannot be made.

Idle fish is the App client of Alibaba's idle fish trading platform (iOS and Android versions). As long as members use Taobao or Alipay account to log in, they can realize many functions, including one-click resale of personal Taobao account "Bought Baby", taking photos of their mobile phones and uploading second-hand idle items, online transactions, etc., without complicated shop opening procedures. By downloading the new concept of "idle fish" APP, individual sellers can gain three advantages: greater exposure, more efficient circulation path and more advantageous logistics price, so that idle babies can make the best use of them at the fastest speed. In addition, the back end of the idle fish platform has been seamlessly connected to the Taobao credit payment system to ensure transaction security to the greatest extent.

The idle fish client can sell idle without registering a store: find a new owner for the dog's puppy at home, share the special goods brought back by the tour with other travelers, and give toys that no longer like to eat to other children ... On the "idle fish", not only are there transactions, but people with the same hobbies and interests are also gathering.