DApps (decentralized applications) are applications similar to regular ones (for example, wallets, games, exchanges), but they operate on the blockchain. Their feature is the absence of centralized control and open source code.
What makes an application decentralized?
Works through smart contracts.
Stores data on the blockchain, not on a single server.
Managed not by one company, but by a community (ideally).
Examples of DApps:
Uniswap is a decentralized exchange.
Aave is a lending protocol.
OpenSea is an NFT marketplace.
Axie Infinity is a blockchain game.
Pros:
Without censorship and intermediaries.
Transparency of code and processes.
The ability to earn through participation (for example, staking or DAO).
Cons:
The interface is not as user-friendly as Web2 applications.
The user is responsible for their own security.
In the end, DApps are the next step towards a more open and free digital ecosystem, where you are not just a user, but a participant in the network.