Payppr is a mobile app that allows users to pay merchants and manage their bank details. It uses fingerprint authentication for login. The app pairs with devices on the same wireless network and displays available merchants from connected browsers. Users can select a merchant to pay, choose a bank account or credit card with sufficient balance, and view payment history categorized by device or bank. It also enables updating personal contact details like phone number, email, and address linked to the user's bank account.