Sneef - not 100% sure but think it is a survey tool used by Shopify.
Just for interest - nothing ground breaking, but was cruising the developer section of the Mastercard site...as ya do!!.
As we know all card issuers (VISA / MC etc) aim to offer tools for instalments in three forms being - 'pre', 'during' and 'post' purchase.
Pre and post been around a while, but during POS instalment is the grail for card issuers, which they then hope banks and merchants will utilise.
This link is interesting - https://developer.mastercard.com/product/installments/ - as you will see in regard to the software / API required to enable 'during POS' instalments, the MC site notes this product is "coming soon ".......lets hope, and let's hope it's us!!