Boltcard Wallet App is an open source wallet for people who want to link Bolt Cards to a Lightning-based setup on their own computer. It suits developers, node operators and enthusiasts who already run or plan to run their own Bolt Card infrastructure rather than casual users looking for a plug-and-play app.
The program is a fork of the BlueWallet project with added support for linking Bolt Cards, which are NFC cards that can be tapped to make Lightning payments. Its goal is to shorten the path from a blank card to a working setup. Because it depends on separate backend services, it is best approached as a component of a larger system rather than a standalone application.
What Is a Bolt Card and Why Does It Matter?
A Bolt Card is a contactless NFC card that holds a reference to a Lightning Network account. When you tap it on a compatible reader, a payment is authorized from that account. The card itself stores keys that let it sign requests, which means it can act as a physical spending tool without exposing the underlying wallet seed.
For many people, the appeal is the combination of Bitcoin's Lightning layer with the familiar experience of tapping a card. Lightning payments settle quickly, and a physical card can be easier to carry and use than a phone for small everyday purchases. The trade-off is that the system needs careful setup and ongoing maintenance.
Who Is This Wallet For?
The app is most relevant to three groups. Developers who want to study or extend Bolt Card tooling will benefit from the open source code. Node operators and privacy-focused users who prefer self-hosted services will find the architecture more in line with their goals. Community projects that issue cards to members may also consider it as part of a larger deployment.
It is less suited to someone who wants a simple app to store and spend bitcoin with no additional setup. Expect to configure backend services before the wallet becomes useful.
Real-World Use Cases
A small community or meetup could issue Bolt Cards to members as a way to make small Lightning payments, such as buying drinks or entering events. The organizers would run the backend and the wallet logic, while members simply carry cards. Another use case is a personal experiment: a developer testing contactless Lightning payments on a home setup before deciding whether to scale it up.
In both cases, the value lies in understanding how the pieces connect. Tapping a card is the visible part; the hub, the LNDhub backend and the wallet are what make it work.
Understanding the Lightning Layer Behind the App
Lightning is a second-layer network built on top of Bitcoin. Payments happen through channels between participants, and only the opening and closing of channels touch the main blockchain. This design allows near-instant transfers with low fees, which is why it is often used for small, frequent payments.
LNDhub is a service that lets multiple users share a Lightning node through a simplified interface, so each user has an account rather than running their own node. Understanding this distinction helps explain why the app requires a separate backend: the wallet talks to the service, and the service talks to the network.
Key features
Bolt Card Linking
BlueWallet Foundation
Open Source Code
Self-Hosted Architecture
How to install Boltcard Wallet App on Windows
- 1
Choose a trusted source
Download the program only from the official website or the project's GitHub repository. Check that the link leads to the boltcard organization and not to a look-alike domain.
- 2
Verify the file
If the release provides a SHA-256 checksum or a signature, compare the downloaded file against it before running anything. Use the PowerShell command Get-FileHash to calculate the hash on your machine.
- 3
Prepare the backend
Because the app requires a Bolt Card Hub and a forked LNDhub, set up those services first. Follow the documentation in the project repository and confirm that they are reachable from the machine where the wallet will run.
- 4
Run the installer or build
Launch the Windows installer or extract the portable build and start the application. If the release is only provided as source, follow the build instructions in the repository instead.
-
Connect the wallet to your services
Enter the address of your Bolt Card Hub and backend in the app's settings, then test the connection before linking any card.
System requirements
- Windows build or installer, as offered in the official release
- A running Bolt Card Hub service the wallet can connect to
- A running forked LNDhub backend (boltcard-lndhub)
- Network access from the Windows machine to those services
How to use Boltcard Wallet App
Once your backend services are running and the wallet is connected to them, the basic workflow is straightforward. The main task is linking a Bolt Card to your account, then testing that taps are recognized before relying on the setup for real payments.
A typical session looks like this:
- Start your Bolt Card Hub and boltcard-lndhub services and confirm they respond.
- Open Boltcard Wallet App and enter the hub address in the settings.
- Choose the option to link a card and follow the on-screen prompts.
- Tap the NFC card on a compatible reader to confirm it is associated with your account.
- Make a small test payment before using the card for anything important.
- Keep a record of your backend configuration so you can restore it if a service is moved or reinstalled.
Pros & cons
- Open source under the MIT license, so the code can be inspected
- Adds Bolt Card linking on top of a familiar wallet interface
- Designed for self-hosted infrastructure rather than a closed service
- Free to use
- Requires separate backend services that must be set up and maintained
- Not suitable for users who want a simple standalone wallet
- Last code update was in August 2023, so ongoing maintenance is uncertain
- Documentation and setup take technical effort
Is Boltcard Wallet App safe?
Download the program only from the official website or the GitHub repository, and check the SHA-256 checksum or signature before running it. Never enter a seed phrase or wallet recovery words on third-party websites, in chat messages or in forms that ask for them. Treat your backend credentials and card configuration as sensitive, and store them securely.
Because the last code update dates back to August 2023, review the project's recent activity before relying on it for real funds. Check the latest version on the official website, and keep only amounts you are prepared to lose while you evaluate the setup.
- Official source only. Download from github.com/boltcard/boltcard-wallet-app. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Compared with general multi-currency wallets such as Coinomi, Exodus or Atomic Wallet, Boltcard Wallet App has a much narrower purpose. Those programs are designed to hold and manage many assets for everyday use. This app focuses on linking Bolt Cards to Lightning infrastructure, and it expects you to run supporting services yourself.
Trust Wallet is also available as a browser-based option on desktop, but it does not address Bolt Card linking. If your goal is a physical card for Lightning payments, this app is more relevant. If your goal is simply to hold and send coins on a PC, a general wallet will usually be easier to start with.
Specifications
- Price
- Free
- Type
- Open source
- License
- MIT
- Latest version
- v0.3.3
- Last update
- 30 Aug 2023
- Windows support
- Yes (Windows build or installer)
- Source code
- github.com/boltcard/boltcard-wallet-app
Frequently asked questions
Yes, the program is free. It is released under the MIT license and its source code is available publicly. Note that running the required backend services may involve your own hosting costs, which are separate from the app itself.
Yes. The app requires a Bolt Card Hub service to connect to, along with a forked version of LNDhub called boltcard-lndhub. You need to set up and run these services before the wallet can link cards and process taps.
It can be, provided you download it only from the official website or the GitHub repository and verify the checksum or signature. Never enter your seed phrase on a third-party site, and review the project's recent activity given its last update in 2023.
A Bolt Card is a contactless NFC card linked to a Lightning Network account. Tapping it on a compatible reader authorizes a payment from that account, offering a physical way to spend Lightning funds.
Yes, Windows support is available through a Windows build or installer. Choose the version from the official release page and check its integrity before installing it.
The app is a fork of BlueWallet with added capability for linking Bolt Cards. The core wallet experience is similar, but the Bolt Card features and the required backend services are specific to this fork.
It is generally better suited to people with some technical experience, because setup involves running and connecting backend services. Beginners who only want a basic wallet may prefer a general-purpose option.
Verdict
Boltcard Wallet App is a focused tool for people who want to connect Bolt Cards to a self-hosted Lightning setup on Windows. It is open source, free and built on a familiar wallet codebase. Its main limitation is the amount of backend work it requires, along with the uncertainty that comes from a last code update in 2023.
It is best for developers, node operators and community projects willing to run their own infrastructure. For a simpler experience, consider a general wallet from the list of similar programs below.