USDB on Spark
Built directly on Bitcoin with Spark. Review Brale's current reserve and redemption disclosures before using USDB. It runs on Spark, so there is no bridge to manage in Blitz.
Dollars and Bitcoin in one wallet
Keep your spending balance steady, and let Blitz receive USDT or USDC from 9 networks and convert it to BTC or USDB for you.
What you get
Hold Bitcoin and dollars together
Earn while you hold
Hold 10+ USDB and get up to 6 percent back, paid each day in BTC. USDB involves issuer risk.
Swap between BTC and USDB in the app
Review the current quote, route, and fee in Blitz before confirming a swap. Bitcoin and stablecoins have different risks.
Receive from any supported network
Your accumulation addresses work with Arbitrum, Base, BNB Chain, Ethereum, Optimism, Plasma, Polygon, Solana, and Tron. If someone sends USDC or USDT there, Blitz converts it to BTC or USDB for you.
Spend either balance
Pay contacts, send gifts, fund pools, use paylinks, or pay at POS with your BTC or USDB. You do not need to switch wallets to use a different balance.
Keep the stability without the limits
Why keep dollars on Bitcoin
| Feature | Blitz with USDB | Typical stablecoin wallet |
|---|---|---|
| Rail | Native on Bitcoin with Spark | Runs on Ethereum, Tron, or Solana |
| Rewards for holding | Up to 6 percent back, paid daily in BTC when you hold 10+ USDB | Most do not offer rewards |
| Auto-convert from 9 networks | Available | Not available |
| Spend easily | One balance for both | Separate balance for each network |
Do your own check before you hold USDB: Read the
current details on issuer, reserves, redemption, and rewards in the
app and on
Brale’s site. Every stablecoin carries issuer and platform risk.
How to start
Three ways to get USDB
Swap BTC to USDB
Open Swap in Blitz, enter how much you want to change, review the rate, and confirm. Your new balance shows in dollars.
Get paid on Lightning
Share your Lightning address. In settings you can have incoming payments convert to USDB automatically if you want to keep the value steady.
Receive USDT or USDC from other networks
Copy an accumulation address for the network you want to use. When someone sends USDC or USDT there, Blitz converts it to USDB or BTC.
FAQ
Common questions
Is USDB safe to hold?
USDB is designed to be backed by Treasuries and cash held by Brale. Check the latest reserve reports, audits, and redemption terms before you decide if it fits your needs. Read the USDB details.
How long will rewards be available?
Keep at least 10 USDB to get up to 6 percent back, paid each day in BTC. Terms can change, so check the app for the current offer. Like all stablecoins, USDB carries issuer and platform risk.
What are the fees?
A fee may apply when you swap; review the displayed rate and fee before confirming. The app does not charge a holding fee for USDB.
Hold dollars and Bitcoin in one place
Keep dollars for daily spending and BTC for saving. Swap between them in one wallet; route timing and availability may vary.