Harmony follows the same transaction fee model as Ethereum where users pay a certain amount of tokens to get their transactions processed and included in the blockchain. Since Harmony is fully EVM-compatible, users can translate directly the fee model from Ethereum and apply to Harmony. For example, a normal token transfer transaction cost 21000 gas. The gas price can be as low as 0.000000001 ONE (or 10 Gwei as in Ether) since Harmony have high TPS and the network is highly efficient and rarely clogged. This means a normal transfer cost only about 0.000021 ONE. In General, transactions in Harmony network cost around $0.000001 gas fee.