A normal app runs on servers owned by a single company, which controls the accounts, the data and the rules, and can change or switch them off at will. A dApp moves that core logic onto a public blockchain, where it operates as smart contracts that no single party can quietly alter or shut down. You usually interact with a dApp by connecting your own wallet rather than creating a username and password, so you keep custody of your funds throughout while using the service.
The category is broad. Decentralised exchanges, lending platforms, NFT marketplaces and blockchain games are all dApps. Their appeal is openness and self-custody: the rules sit transparently in code, and you are not asking a gatekeeper for permission to take part. The flip side is that this same openness strips away the safety nets people take for granted in ordinary consumer apps, and that trade-off is the honest headline worth internalising.
In practice that means there is often no support desk to call, transactions cannot be reversed once made, and a bug in the underlying contract can prove costly. dApps put you firmly in control, which also means the responsibility, and the risk, rest squarely with you. They are best treated as powerful tools to understand carefully before use, not as consumer apps with a friendly refund button waiting in the background.
DeFi Basics and Risks
Key takeaways
- A dApp runs its core logic as smart contracts on a blockchain rather than on one company's servers.
- You typically use a dApp by connecting your own wallet, keeping custody of your funds.
- Openness and self-custody come at the cost of safety nets: no support desk and irreversible mistakes.
dApp — perguntas frequentes
How do I use a dApp?
Usually by connecting a self-custody wallet rather than signing up with an email and password. The wallet lets you approve transactions, so you interact directly with the smart contracts while keeping control of your own funds the entire time.
Are dApps safe to use?
They remove middlemen but also the usual safety nets. Contracts can contain bugs, transactions cannot be reversed, and there is often no support to call. A dApp puts you in control, which means the risk is yours to understand and manage.
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