Cosmos use case

There are some very interesting use cases for interoperability achieved by Cosmos:

DEX: Since Cosmos connects so many blockchains to each other, it goes without saying that it can easily make different ecosystems interact with each other. This is the perfect environment for decentralized exchange.
Cross-chain transactions: Similarly, a region can use the services of another region through the Cosmos center.
Ethereum scaling: This is one of more use cases. According to the architecture, any EVM-based area connected to the Cosmos Hub will be supported by the Tendermint consensus system. This will allow these areas to expand faster.
Cardano
Token: ADA

As the brainchild of Ethereum co-founder Charles Hoskinson, Cardano is a smart contract platform, but Cardano provides scalability and security through a layered architecture. Cardano's approach is unique in the space itself because it is based on the philosophy of science and peer-reviewed academic research.

Cardano is a third-generation blockchain that focuses on bringing scalability and interoperability to the blockchain space. There are three organizations working full-time to develop and take care of Cardano:

Cardano Foundation.
IOHK.
Emurgo.
These three organizations work together to ensure that the development of Cardano goes smoothly.