Gearbest has prepared a nice offer related to their app and PayPal. If you still don’t have a PayPal account, here are instructions on how to create one.
The first 5000 customers who make a purchase through the Gearbest app (download here) and pay it via PayPal get a 5% discount, but only if the price is higher than $10. Otherwise the discount is only 4%.
The whole discount offer can be seen on this page. It includes flash sale where you can purchase a micro quadcopter for less than 10$. Furthermore, with any purchase you get a chance to take part in a contest for valuable rewards.