Up until recently, Rainbow and many other blockchain projects have only been compatible with Ethereum—the world's public decentralized ledger. Ethereum is extremely secure and highly reliable, but it isn’t always well suited for speed and efficiency.
Now however, Rainbow has increased its network support and we currently support the below networks as well:
Layer 2 Networks
What does this mean for you? It means inexpensive and instant transactions. On a network like Polygon, you might only pay $0.0005 in comparison to a $5 transaction on Ethereum. is an example of a Layer 2 network, and it's the first one being added natively to Rainbow.