Using ‘Coins,’ you can try on outfits and prettify your wardrobe items. You get free Coins as a new user, then you can refill the balance anytime:
Tap the button with the coins icon in the upper right corner in the ‘Today’ tab.
Choose the amount needed, and tap the 'Continue' button at the bottom of the screen.
You can use a debit/credit card, Google Pay, Apple Pay, or PayPal to make the payment.