The Amazon Mastercard mobile app by NewDay Ltd is a finance app available for Android users. The app is designed to help users manage their Amazon Mastercard account on the go. With the app, users can view their latest balance, available credit limit, and transactions, including those that are still pending. The app also allows users to make payments on their account, set up or manage their direct debit, manage their statement preferences, update their contact details, and view FAQs.

The app is free to download and easy to use. If you're already registered for the Online Account Manager, you can use the same details to log in and start using the app right away. If you're not registered, you can easily register through the app by providing your last name, date of birth, postcode, and card details or account number.

Overall, the Amazon Mastercard mobile app is a convenient tool for managing your account on the go. With its user-friendly interface and helpful features, it's a must-have for anyone with an Amazon Mastercard account.