
Across Bridge is known for fast cross-chain transfers, but the ACX token is the part many beginners misunderstand first. If you are using Across Bridge to move funds between Ethereum, Arbitrum, Optimism, Base, Polygon, or zkSync, ACX is connected to the protocol, but it is not the token you must hold just to make a normal bridge transfer.

Across Bridge is a practical option when you want to move crypto from one chain to another on your phone without turning the process into a desktop-only project. If you are using a mobile wallet and need to move funds between Ethereum, Arbitrum, Optimism, Base, Polygon, zkSync, or another supported L2, Across Bridge helps make that flow feel simpler.