Do I need to install the app to use MBX Tokens? May 23, 2022 07:55 The app is required to trade MARBLEX Link, provided by MARBLEX. Related articles What are MBX Tokens? MBX information & How to send Inquiry The service says it is unavailable in my location. What do I do? Where can I use them? Can I unlink a game I've already linked?