A crypto wallet looks like an app with a balance. It feels as if the coins sit in the phone, like photos. They do not.

The coins live on the blockchain — the network's shared ledger. The wallet stores the keys you use to sign "yes, I am sending this". Without the key, the balance on screen is a picture. With the key, it is the right to spend.

Keys in the wallet, coins on the network

What you see on screen

The address (on EVM it starts with 0x) is the public shopfront. You can share it for a transfer. The seed phrase and the private key are the right to spend. You do not give those to anyone, including "support".

The three objects are unpacked here: address, key and password.

Why have your own wallet

On an exchange you have a login. The exchange can freeze withdrawals, get hacked, or lose the account through email. A non-custodial wallet means the keys are yours. The price is responsibility. Lose the seed and the money is gone — there is no bank chargeback.

When you want an exchange account and when you want your own address: custodial vs non-custodial.

What a wallet cannot do

It does not insure the price. It will not warn you that a token is junk. It will not undo a transfer to the wrong network. Once you sign, the network executes.

That is why a tracker that only *reads* the address sits next to the wallet: Crypto360 never asks for a seed and cannot withdraw.