Blixt Wallet is an open source Lightning Bitcoin Wallet for Android with focus on usability and user experience, powered by lnd and Neutrino SPV.

• Embedded lnd with Neutrino
• Descriptive and clean transaction log
• Receive payments
• Autopilot
• Pincode
• Fingerprint
• Optional Recipient/Sender name that will be displayed on transactions
• Optional "Payer" field for bookkeeping when creating invoice
• Scheduled sync of chain background job
• Local channel backup
• LNURL support (all sub-protocols: pay, channel, auth and withdraw)
• Channel backup to Google Drive (Android) and iCloud (iOS)
• WebLN browser
• Support for Multi-Part Payments (MPP)
• Integrated Tor support
• Sending to Lightning Address
• Automatically open channels when needed (LSP)
• Receiving via Lightning Address by Lightning Box
• NFC

The wallet uses lnd that is young and might have bugs. Check lnd bug list here.

Blixt targets three platforms right now: Web, Android and iOS.

The web target is only used for prototyping and is not a real wallet.

The easiest way to build Blixt is to build the web version, because you only need Node+Yarn installed and you don't have to compile lnd as you would have for the native targets.

The web version is not used as a real wallet and is only used for fast prototyping. It's useful if you want to make design and GUI changes.

• Install Node and Yarn
• Install Node packages: yarn
• Generate proto files: yarn gen-proto
• Start the web server: yarn web

• Install Node, Yarn and Android Studio + Android SDK (including NDK)
• If needed, install an emulated android device inside Android Studio
• Download lnd binary from blixt-lndmobile-releases and put it in android/lndmobile. Alternatively build lnd for Android by following the steps in build-android-aar.md
• Get the tor sub-module: git submodule update --init
• Install Node packages: yarn
• Compile the Tor Android lib: yarn build-tor-lib
• Generate proto files: yarn gen-proto

To start the application:

• Run: yarn start-metro
• Run: yarn android:mainnet-debug or yarn android:testnet-debug

The iPhone/iOS version is still a work in progress.

To build the iOS version, macOS is required. You also need an Apple Developer account, although you do not need to be enrolled in the Developer Program.

• Install XCode, Node and Yarn
• Build lnd for iOS by following the steps in build-ios-framework.md
• Install Node packages: yarn
• Generate proto files: yarn gen-proto
• Install CocoaPods libs: cd ios && pod install
• Setup team signing:
  • Open ios/BlixtWallet/BlixtWallet.xcworkspace with XCode
  • Login with your Apple Developer account if XCode asks you to
  • Click on BlixtWallet in the left column
  • Click on the Signing & Capabilities tab
  • Choose your Team in the dropdown and choose a new unique Bundle Identifier (cannot be the same as the ones released on the App Store). Do this for every configuration

To start the application:

• Run: yarn start-metro
• Run: yarn ios:mainnet-debug --device "<your device name>" or build from XCode

Follow the code style of the file you are working in. For commits, make descriptive and atomic git commits.

MIT