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How Fizen works

Fizen Super App combines a non-custodial crypto wallet with real-world payment tools β€” all in one mobile app. Your crypto is stored in a blockchain wallet that only you control. You use it to pay for things directly: scan a QR code at a local shop, top up your Visa card, buy an eSIM, send money to a friend.

Your wallet

Fizen uses a non-custodial wallet β€” meaning only you hold your private key. Fizen cannot access, freeze, or hold your funds. When you set up the app, you receive a private key. Keep it safe β€” it’s the only way to recover your wallet if you lose access.

How crypto transactions work

Unlike bank transfers that go through a central database, crypto transactions are recorded on a distributed blockchain network β€” thousands of computers that all verify and store the same record simultaneously. This makes transactions:
  • Transparent β€” anyone can verify on-chain
  • Secure β€” no single point of failure
  • Irreversible β€” once confirmed, they cannot be undone
This is why you should always double-check wallet addresses before sending.

Supported networks

Fizen supports multiple blockchain networks. For Fizen Card top-ups, use Solana (lowest fees, fastest confirmation).
Always make sure you’re sending on the correct network. Sending USDT on the wrong network may result in permanent loss of funds.