“Carte Lignes d’Azur Mobile” is an application extension. It allows you to securely store your Lignes d'Azur travel tickets.
You must use Lignes d'Azur Tickets to buy your tickets and subscriptions. “Carte Lignes d’Azur Mobile” does not allow the purchase of tickets.

KEEP THE LIGNES D’AZUR MOBILE CARD EXTENSION… AND YOUR TRANSPORT TICKETS
Your tickets and subscriptions are stored and secured directly on the "Carte Lignes d'Azur Mobile". Keep it so you don't lose your unused tickets.
You can always use Lignes d'Azur Tickets in "Anonymous" mode. However, we recommend that you create an account on the application: in case you have to reinstall "Carte Lignes d'Azur Mobile", your subscriptions and ticket books will then be transferred there.