Yes, you need to have downloaded and registered on Koko. 
Customers will be entitled to purchase through Koko from Daraz in 2 ways. 


Option 1- Anyone who completes their registration on the Koko app will be entitled to make purchases through Daraz 


Option 2- Pre-selected Daraz customers will be able to view Koko as a payment option at Daraz Checkout. Please note that you will be able to view Koko as a payment option only if your product value is less than or equal to your spending limit.