They’re comparable in some areas, similar to that they each supply one thing referred to as zk rollups (aka “zero-knowledge rollups”, that are used to validate knowledge on a blockchain in a method that’s faster than the extra commonplace proof of stake mechanism). However Loopring has extra of a give attention to serving to decentralised exchanges (together with a rumoured partnership with an NFT marketplace), whereas Polygon permits folks to make sensible contracts, give loans, whereas additionally having functionality for decentralised exchanges. However though Polygon has extra use circumstances, that doesn’t imply the know-how goes to show to be higher in the long run.
On the time of writing, Polygon is the 16th most popular coin by market cap, whereas Loopring is 75th. This makes the latter far more unstable, which may create greater rewards however is riskier. Plus, given their opponents, it’s honest to say Polygon is method, far more standard proper now. It’s like Everton versus Mansfield City.