Support & Contact – De Lijn General questions Apps and mobile website What do I need in order to use the De Lijn app or site? Published on February 11, 2020 08:15 Wireless or mobile Internet is required to use our app and site wherever you are. Any questions about this subject?Fill in this form. Related articles How do I activate my m-ticket, m-daypass or a ticket on my m-card10? Which means can I use to pay? What is the iOS/Android app? Can I listen to music on the bus or tram? What if I have questions or comments about the app?