In short:
Cryptocurrency is the 'native' coin of its own blockchain (for example, BTC in the Bitcoin network, ETH in Ethereum). It is needed for paying fees, securing the network, and basic calculations.
A token is a digital asset that is issued on top of an already existing blockchain (for example, an ERC-20 token on the Ethereum network or a BEP-20 on the BNB Chain). Its functions are defined by a smart contract: from a means of payment to a voting right or a stake in the protocol.
Cryptocurrencies
Cryptocurrency is digital money that has its own blockchain. Cryptocurrency operates on 'its' network with its own rules and validators/miners.
The main characteristic: cryptocurrency does not depend on a foreign network, it has its own infrastructure.
Examples: BTC (Bitcoin), ETH (Ethereum), SOL (Solana), ADA (Cardano), AVAX (Avalanche).
Tokens
A token is also a digital asset, but it exists within a foreign blockchain. It operates on top of another blockchain: created by a smart contract without launching a separate network.
That is, if cryptocurrency is like a separate 'city with its own road', then tokens are residents of foreign cities that use the already established 'infrastructure'.
Examples: USDT (ERC‑20), PEPE (ERC‑20), PUMP (Solana).
What is the difference in brief?
Cryptocurrency = foundation + its own blockchain.
Token = utility/function based on a foreign blockchain.
Conclusion
Cryptocurrencies (coins) are the fuel and 'backbone' of blockchains.
Tokens are programmable tools on top of these blockchains: from access rights to digital assets and votes in protocols.
