I get a message in the app that I need to update my app, is this mandatory?

We are constantly striving to provide all our app users with the best (payment) experience. This includes occasional updates to improve the user-friendliness of the app and expand its features, making it even easier for you to pay by mobile. Therefore, it is recommended that you update your app whenever a new update is available. You can update the app in the App Store (iOS) or the Google Play Store (Android).