AurusOne question: who holds the private keys? Custodial, like an exchange account, means a company holds them and moves your crypto on your behalf. Non-custodial means the keys are made on your device and only you have them.
Custodial
Works like a bank. Password, reset flow, support line. That's the upside. The downside is the company can freeze your account, cap withdrawals, or go bust with your money on its balance sheet. People have learned that one the hard way more than once. "Not your keys, not your coins" is a cliché because it keeps being true.
Trading bots are custodial too, which is easy to forget. They're fast because they hold your key and sign for you. That's the same deal as the exchange, with a Telegram interface.
Non-custodial
No middleman. Assets sit on-chain under your keys, transactions don't need anyone's approval, and there's no account to freeze. The trade is that security is now your job. Whoever has your recovery phrase has your funds, and if you lose it there's no reset. Keeping the phrase safe is the practical side.
Which one
Most people use both. An exchange to get in from a bank account, a non-custodial wallet for actually holding and trading. If you trade on Solana with any regularity, non-custodial is home base. The reason people still reach for a bot is speed, and that's the gap Aurus was built to close: bot-style execution, keys on your phone. See is Aurus safe for how.
