com.blitzwallet

Blitz Wallet is a self-custodial Bitcoin wallet built with React Native and Expo. Powered by the Spark network, Blitz delivers fast, low-fee Bitcoin payments with a simple user experience.

Self-Custodial — Neither Blitz nor Spark has access to your seed phrase or funds. If you lose your seed phrase, access to your funds will be lost. Do not share your seed phrase with anyone.

Download

Features

Payments

Send Bitcoin — via QR code, camera roll, clipboard, contacts, or Lightning address
Receive Bitcoin — via Lightning, Liquid, Spark, On-chain, roostock QR codes
Stablecoin Payments — send and receive USDB (LRC-20) tokens on Spark
LNURL Support — pay, withdraw, and auth
Bulk Payments — send to multiple recipients in a single operation
Split Payments — split a payment across multiple sources
Pay Links — create reusable payment request links with optional amounts and descriptions
Lightning Address — receive payments to your @blitzwalletapp.com address

Wallet Management

Savings Goals — create named savings goals, deposit and withdraw funds, track progress
Accumulation Addresses — receive stablecoins (USDC/USDT) on Solana, Base, Ethereum, Arbitrum, Optimism, Polygon, Tron, or Plasma and auto-convert to BTC or USDB
Pools — create group funding pools, invite contributors, and track progress toward a target amount
Bitcoin/Stablecoin Swaps — swap between BTC and USDB directly within the wallet
Sub-Accounts — create multiple accounts within a single wallet
Contacts — save and manage contacts for quick payments
Transaction History — detailed payment info (date, time, fee, type) and technical details (payment hash, preimage, ID)
CSV Export — export your transaction history
Analytics & Budgeting — view spending and income charts, set budgets, track against limits
Nostr Wallet Connect (NWC) — connect your wallet to Nostr apps

Built-in Store

Gift Cards — purchase gift cards from hundreds of brands
Online Listings — browse and discover Bitcoin-accepting businesses
BTC Map — find Bitcoin merchants near you on an interactive map

Settings & Security

Biometric Login — opt-in Face ID / fingerprint authentication
PIN Protection — secure your wallet with a custom PIN
Wallet Recovery — restore from your 12-word seed phrase with word suggestions
Fiat Display — support for numerous fiat currencies
Balance Denomination — switch between fiat, sats, or hidden
Themes — Dark mode, Light mode, and Lights Out mode

Localization

Available in 8 languages: English, Spanish, French, German, Italian, Portuguese (Brazil), Swedish, and Russian.

Technical Highlights

Spark SDK — WebView-based WASM runtime with encrypted bridge (ECDH + AES-256-GCM) and native React Native SDK fallback
Flashnet — instant off-chain transfers between Spark wallets
Liquid Network — Breez SDK integration for Liquid sidechain support
Atomic Swaps — Boltz integration for trustless cross-chain swaps
Rootstock — receive via RSK bridge
Push Notifications — Firebase Cloud Messaging for payment alerts
Point of Sale — merchant-facing receive mode

Contributing

We rely on GitHub for bug tracking. Before reporting a new bug, please search the existing issues to see if it has already been reported. If not, feel free to create a new issue.

We welcome pull requests to improve the codebase or introduce new features. All pull requests will be reviewed by the Blitz team.

Build

To run the project locally, follow these steps:

Coming soon...

License

Blitz Wallet is released under the terms of the Apache 2.0 license. See LICENSE for more information.