1. Download the app from the App Store (for iOS) or Play Store (for Android) and start operating with the user codes that you use on the web version, without having to sign an additional contract.
2. To start signing operations, just activate your mobile token, which is integrated in the app. See how easy it is to do it here.
If you carried out your operations through the app version, you can sign them directly in the application.
Or, if you prefer, sign your operations on the website.