Self-custody from signup
Non-custodial BTC and ETH wallets are generated during signup so users keep control of their assets from day one.
D'Fi Crypto Stack
Crypto capabilities built for daily use and full control.
D'Fi combines self-custody, buying and swapping, and network-level visibility in one place so users can hold, move, and manage digital assets without leaving the app.
Crypto on/off ramp
Users can spend directly from balance, top up with crypto, or cash out crypto back into spendable balance.
Buy major assets
In-app purchasing supports BTC, ETH, USDC, and USDT with transparent execution flows.
Built-in D'Fi Swap
Swap any supported token directly on network rails without leaving the D'Fi experience.
Wallet and token control
Import existing wallets, create new wallets, and import custom tokens for tailored portfolio tracking.
Live network activity
See transaction history and activity on network so users can verify movement and status in real time.
D'Fi Swap
Your next move.
One simple swap.
Move between supported tokens without leaving D'Fi. Choose your pair, enter your amount, and review your swap from the same app you use to manage your wallets.
- Choose your tokensSelect the asset you want to swap and the token you want to receive, like ETH and USDC.
- Set your amountEnter a custom amount or use the balance shortcuts to choose a portion of your available tokens.
- Review before you confirmCheck the quoted amounts and applicable fees before approving your swap.
Vault BackUp Card
Your wallet. Your keys.
Your backup plan.
A physical NFC card for encrypted wallet-key backups, exclusively for use with the D'Fi App. Creating and restoring VaultCard backups requires the D'Fi App on an NFC-enabled phone; the website and other wallet apps do not support this backup flow. Recover your wallets with your card and a separate recovery passphrase, without uploading your keys to D'Fi.
- Bitcoin + Ethereum & Base
- Back up one Bitcoin key and one EVM key. The EVM key works with the same address on Ethereum and Base.
- Encrypted before the tap
- Private keys are encrypted on your phone using AES-256-GCM before they reach the card. Your recovery passphrase is not stored on the card.
- Built for local recovery
- The native app is designed to read and verify the backup, then restore your keys to secure device storage. The card is a backup, not a payment card or transaction-signing hardware wallet.
Keep your recovery passphrase safe and separate from your card; the card alone cannot recover your keys.
Supported Networks
- BTC Network: send, receive, and track Bitcoin transactions.
- ETH Network: manage Ethereum assets and token operations.
- Base Network: access lower-cost activity and token movement on Base.
Ready to use D'Fi Crypto?
Explore the on/off ramp and the complete crypto flow inside the D'Fi ecosystem.