Addful Wallet

noun

A self-custody wallet for USDT (Tether USD) that runs in the browser and installs on a phone like an app.
A wallet for holding, sending, receiving and bridging USDT across Ethereum, BNB Smart Chain, Polygon, Tron and Solana, where the keys are created and kept on the owner’s own device.

What you can do with it

Send: Send USDT to any address on a supported network. Each transfer is signed on your device and confirmed with your PIN.
Receive: Get a deposit address for each network, copy it, and receive USDT. Your balance is read directly from the blockchain.
Bridge: Move USDT from one network to another. You see what you pay and what you receive, along with the network fee check, before you confirm.

How your keys are handled

When you set up the wallet, a 12-word recovery phrase is created in your browser. It is encrypted with your 4-digit PIN before it is stored on that device, and transactions are signed there.

Addful’s servers never see your recovery phrase or private keys. They store only public addresses and pass already-signed transactions on to blockchain nodes. Your PIN is separate from your login password and is asked for on every transaction.

The phrase uses the standard format, so it can be imported into other wallets such as MetaMask, Trust Wallet and Phantom.

Only you hold the phrase. Addful cannot recover it. If you lose both the phrase and the device, the funds on these networks cannot be recovered by anyone.

Supported networks

Network	USDT standard	Fees paid in
Ethereum	ERC-20	ETH
BNB Smart Chain	BEP-20	BNB
Polygon	Polygon	POL
Tron	TRC-20	TRX
Solana	SPL token	SOL

Network fees are paid in each network’s own coin, so keep a small amount of it at your address on that network.

About bridging

To bridge, you send USDT on one network and Addful pays out on the other at the rate shown. The rate is fixed when you confirm. Bridge requests are reviewed and completed by Addful rather than by a smart contract, so they are not instant. Their status is shown in the app.

Accounts and installing

You sign in with an email address and password. Addful Wallet is a web app: open it in your browser, or add it to your home screen on Android and iOS. Your last saved balances and history stay viewable when you are offline.

Common questions

Is Addful Wallet custodial?: No, not for the networks above. Your recovery phrase and keys stay on your device, and Addful cannot move your funds.
What if I forget my PIN?: You can reset it with your login password. The wallet on that device can then only be reopened with your 12-word recovery phrase.
Can I send USDT on the wrong network?: Transfers on a blockchain cannot be reversed. Always check that the network and address match before you confirm.

Open the wallet