Pay in 4 is a feature that lets you split your purchase into 4 equal interest-free payments, with the down payment due at the time of transaction and 3 subsequent payments made every 2 weeks thereafter. For example. A regular price of a cellphone case via iFoodie store is $44.99. The down payment at the time will be $11.25.  The other $33.74 is evenly split over next 6 weeks. With a payment of $11.25 every 2 weeks. Hence, pay in 4. US$ is the default currency of iFoodie store.

iFoodie store offers pay in 4 via PayPal. Just simply press Pay later at the checkout. This picture below is an example. 

IMPORTANT ANNOUNCEMENT: Missouri, New Mexico, Nevada and US territories such as American Samoa, Guam, Northern Marinara Islands, Puerto Rico, US Virgin Islands and Minor Outlying Islands, Bajo Nuevo Bank, Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Kingman Reef, Midway Islands, Navassa Island, Palmyra Atoll, Serranilla Bank and Wake Island. The residents of those places are not eligible for PayPal`s PAY IN 4. 

In spite of this, PayPal is currently working to expand this option.