No, these are two different currencies

ETH is Ethereum, an open source public blockchain platform with smart contract functions. It provides a decentralized virtual machine (called the "Ethereum Virtual Machine" EthereumVirtualMachine) through its dedicated cryptocurrency Ether (also known as "Ether") to process peer-to-peer contracts. It can be traded on the foreign exchange market of many cryptocurrencies, and it is also the medium used to pay transaction fees and computing services on Ethereum.

The full English name of TONCOIN is TONCoin. TheOpenNetwork (TON) is a fast, secure and scalable blockchain and network project that can process millions of transactions per second, which is both user-friendly and Facilitate service providers. TON coins are used to pay the deposits required to become a validator; transaction fees, gas payments (i.e., smart contract information processing fees), and long-term storage payments are also generally charged in TON coins. The annual inflation rate is 0.6%. This inflation represents the fees paid by all members of the community to validators to keep the system functioning properly.