Web3.
In plain English
Web3 is a label for internet applications that run on public blockchains instead of company-owned servers. The pitch is that a user signs in with a wallet rather than an email and password, and that balances, tokens, and records live on a shared ledger anyone can read. In practice most Web3 apps still lean on ordinary websites, hosting companies, and app stores for the parts people actually touch. The word is a marketing frame as much as a technical one, and it covers projects that differ enormously in how decentralized they really are.
01Why it matters
When the account is a wallet, the person holding the keys is the account recovery process, so losing keys or approving a bad contract has no help line behind it.
02The math, step by step
Say an app asks a user to connect a wallet and approve a contract to spend up to 5,000 dollars of a token. The user trades 200 dollars once and forgets the approval. The open allowance still covers the remaining 4,800 dollars until it is revoked, which itself costs a network fee of a few dollars.
Illustrative example. The amounts here are hypothetical, chosen to show how the math works, not real quoted rates or figures.
03What this is NOT
It is not the same as buying crypto. Web3 describes how an application is built and how a user signs in. Buying a coin is a purchase of an asset. An app can be built this way and have no token at all, and a token can exist with no application behind it.
04Receipts
Every figure on this page is sourced to a primary document. Tap to open the original.
Plain-English answers from our glossary. Receipts included. Never advice.
Educational tool. Answers come only from ClearMoneySchool's published glossary and are not advice. Why we never give advice