BANXUP is a finance app developed by Société Générale for teenagers to manage their money and keep track of their expenses. The app allows users to receive money quickly from their parents and compare their expenses with previous months. It also provides a MasterCard for teenagers to withdraw money anywhere in the world and make payments in stores or online. The app is exclusively available for Société Générale customers aged 10 to 17 years old who have an account with the bank. Parents can easily open an account for their child through the app or website.

BANXUP aims to promote financial independence among teenagers and encourages feedback to improve the app. However, if users encounter any issues, parents can contact the customer support team through their BANXUP account. With BANXUP, teenagers can learn to manage their finances responsibly while having the freedom to spend their money as they please.