AurusEvery Solana transaction pays a small fee to the network, separate from whatever the wallet charges. The base is 5,000 lamports (0.000005 SOL) per signature, which at any SOL price you've seen is a fraction of a cent.
The three network costs
- Base fee. 0.000005 SOL per signature, on every transaction, whether it lands or fails. Half burned, half to the validator.
- Priority fee. Optional tip, priced in micro-lamports per compute unit, that tells validators to take yours first. During a hot launch this is the difference between landing and not. Even an aggressive one is usually a few cents.
- Rent. A refundable deposit, about 0.002 SOL, to open a new account on-chain. You pay it the first time you hold a token. You get it back when you close the account.
Versus Ethereum gas
Solana's base fee is tiny and fixed. The priority fee is the auction, and it's a small one. An Ethereum swap can cost dollars in gas. A Solana swap is usually pennies even with a healthy priority fee. Which is why the app fee matters so much more here. A 0.85% cut can be thousands of times the network fee underneath it. How wallet fees compare.
Why there's no fee slider in Aurus
You never pick a fee level. There's no low/medium/high toggle anywhere in the app. For every trade Aurus reads the network's current fee estimate and sets the priority fee from that, scaled up for bigger trades and for tokens that are moving fast, with a ceiling so a spike can't turn into an absurd tip. On top of that you pay the Aurus fee, capped at 0.001 SOL.
If the wallet you're trading from is short of SOL for fees, tips, or rent, the app says exactly what's short and lets another wallet you own in the app cover it. The swap amount itself always comes from the wallet you're trading with.
