The Bolt Card, used for the Bitcoin 2025 Guinness World Record attempt, relies on the Bitcoin Lightning Network for contactless payments. To ensure compatibility, attendees wishing to participate in our collective attempt at breaking the world record need a Lightning wallet that supports LNURLw (Lightning Network URL Withdraw) or similar protocols, as these facilitate the tap-to-pay functionality of the Bolt Card. Below, I’ll address compatible wallets, including whether Leather (formerly Hiro Wallet) is suitable, and provide a comprehensive list of wallets that work with the Bolt Card for the event.

Compatible Lightning Wallets for the Bolt Card

The Bolt Card requires a Lightning wallet to link with its NFC-based payment system, allowing users to make instant, low-cost Bitcoin transactions. Based on the Bolt Card’s official documentation and Lightning Network wallet compatibility, the following wallets are recommended for use at Bitcoin 2025. These wallets support LNURLw or similar Lightning protocols and are user-friendly for both beginners and advanced users:

Wallet of Satoshi
- Type: Custodial
- Compatibility: iOS, Android
- Why Suitable: Known for its simplicity, Wallet of Satoshi is a zero-configuration custodial wallet that supports Lightning payments, including LNURLw, making it ideal for quick Bolt Card setup. It’s beginner-friendly and automates payment channels.
- Note: As a custodial wallet, the provider holds your private keys, which may not suit users prioritizing full control.
- Download: walletofsatoshi.com
Breez Wallet
- Type: Non-custodial
- Compatibility: iOS, Android
- Why Suitable: Breez is designed for Lightning Network transactions, offering a sleek interface, automatic channel management, and LNURL support. It includes features like QR code scanning and instant payments, perfect for Bolt Card transactions.
- Note: Offers advanced features like multisig and Breez Cloud for device flexibility.
- Download: breez.technology
Muun Wallet
- Type: Non-custodial
- Compatibility: iOS, Android
- Why Suitable: Muun integrates on-chain and Lightning transactions into a single balance, supporting LNURLw and offering a user-friendly interface. Its fee estimator ensures cost-effective transactions, making it a strong choice for Bolt Card use.
- Note: Uses a third-party service for Lightning deposits/withdrawals, requiring some trust. Over 50,000 downloads on Google Play.
- Download: muun.com
Phoenix Wallet
- Type: Non-custodial
- Compatibility: iOS, Android
- Why Suitable: Phoenix automatically manages Lightning channels, charging a 1% fee (minimum 3,000 sats) for channel creation. It supports LNURLw, making it compatible with Bolt Card’s tap-to-pay system.
- Note: Limited to mobile and Bitcoin-only for Lightning transactions. Some businesses may need additional POS features not offered.
- Download: phoenix.acinq.co
BlueWallet
- Type: Non-custodial
- Compatibility: iOS, Android, Desktop
- Why Suitable: BlueWallet supports Lightning payments via LNDhub, allowing users to connect to their own or third-party Lightning nodes. It supports LNURL and is feature-rich, with over 100,000 downloads and a 3.9-star rating. Ideal for Bolt Card transactions.
- Note: Requires some technical setup for maximum privacy if using your own node. Lndhub.io service was discontinued in 2023, so users must find alternative nodes.
- Download: bluewallet.io
Zeus Wallet
- Type: Non-custodial
- Compatibility: iOS, Android, Web (via node)
- Why Suitable: Zeus is suited for advanced users who want full control, supporting LNURL and allowing connections to personal Lightning nodes. It’s compatible with Bolt Card’s payment requirements but may require more setup.
- Note: Higher fees compared to others (e.g., Phoenix’s 0.4% + 4 sats) and more technical to use.
- Download: zeusln.app
Exodus Wallet
- Type: Non-custodial
- Compatibility: iOS, Android, Desktop
- Why Suitable: Exodus offers a user-friendly interface with Lightning Network support, allowing low-fee transactions. It’s non-custodial, ensuring users control their keys, and supports LNURL, making it viable for Bolt Card use.
- Note: Known for 24/7 support and error-checking for transactions, but primarily popular for on-chain Bitcoin before adding Lightning.
- Download: exodus.com
Speed Wallet
- Type: Custodial
- Compatibility: iOS, Android
- Why Suitable: Speed is designed for fast, secure Lightning transactions, supporting LNURLw and QR code payments. It’s user-friendly and allows withdrawals to third-party wallets, aligning with Bolt Card’s needs.
- Note: Custodial nature means less control over keys, but it complies with global regulations for data protection.
- Download: tryspeed.com

But Is Leather Wallet Compatible?

Leather Wallet (formerly Hiro Wallet) is primarily designed for managing Bitcoin assets like Ordinals, BRC-20 tokens, Stamps, and Runes, and it supports the Stacks Layer-2 chain. As of the latest information, Leather does not fully support the Lightning Network, which is critical for Bolt Card compatibility. A 2023 post on X from @LeatherBTC indicated that Lightning support was “coming soon,” but there’s no confirmation as of May 2025 that it has been implemented. /image

Why Leather May Not Work: The Bolt Card relies on Lightning Network protocols (e.g., LNURLw) for instant, off-chain transactions. Leather’s focus is on Bitcoin mainnet and Stacks, with no documented support for Lightning channels or LNURLw, making it incompatible for Bolt Card use at Bitcoin 2025.
Potential Future Compatibility: If Leather adds Lightning support before May 2025, it could become viable. Check leather.io or Leather’s official X account (@LeatherBTC) for updates closer to the event.
Alternative for Leather Users: If you use Leather for other Bitcoin assets, you’ll need a separate Lightning wallet (like those listed above) to link with the Bolt Card. You can transfer Bitcoin from Leather to a Lightning wallet via on-chain transactions to fund it.

Additional Notes on Wallet Selection

Custodial vs. Non-Custodial: Custodial wallets (e.g., Wallet of Satoshi, Speed) are easier to set up but involve trusting a third party with your keys. Non-custodial wallets (e.g., Muun, Phoenix, BlueWallet) give you full control but may require more technical knowledge. For Bitcoin 2025, either type works as long as LNURLw is supported.
LNURLw Compatibility: The Bolt Card uses LNURLw for withdrawals and payments, as noted in Lightning Pay’s wallet compatibility guide. Wallets like Phoenix may not support LNURLw fully due to their use of BIP-353 and Bolt12 protocols, so double-check compatibility closer to the event.

What about Oyl wallet?

Oyl Wallet is a self-custodial Bitcoin wallet focused on privacy and security, supporting both on-chain and Lightning Network transactions. It emphasizes features like CoinJoin for transaction privacy and integration with platforms like Wasabi Wallet. However, its documentation and available information do not explicitly confirm support for LNURLw or Bolt Card-specific functionality.

Oyl Wallet does support Lightning Network transactions, which suggests it could theoretically integrate with Bolt Card if it supports LNURLw. If you prefer using Oyl Wallet for other purposes, you can transfer Bitcoin from Oyl to a compatible Lightning wallet (e.g., Wallet of Satoshi) via an on-chain transaction to fund Bolt Card transactions.

Preparation Tips:

Fund Your Wallet: Ensure your Lightning wallet has sufficient Bitcoin (e.g., 0.001–0.01 BTC) to cover transactions, considering the 21% discount at the Bitcoin Magazine Store and potential channel fees.
Backup Your Wallet: For non-custodial wallets, securely store your seed phrase. For custodial wallets, link to an email for recovery (e.g., Wallet of Satoshi).
Test Before the Event: Practice sending/receiving Lightning payments using your chosen wallet to ensure familiarity.
Event-Specific Setup: At Bitcoin 2025, you’ll likely receive instructions to link your Bolt Card to your Lightning wallet on-site. The 4,000 limited-edition Bolt Cards (honoring Lummis, Saylor, Nakamoto, Dorsey) will be distributed to attendees, and setup stations may be available. Bring a compatible wallet installed on your phone.

Artist-Developer Maxximillian, on behalf of FUTR , will be reporting live from Bitcoin Las Vegas 2025.

Recommendation for Bitcoin 2025

For ease of use at the conference, Wallet of Satoshi or Breez Wallet are top choices for beginners due to their simplicity and LNURLw support. For those prioritizing control, Muun or Phoenix are excellent non-custodial options. See you at our Bitcoin conference May 27–29, 2025. To stay updated, monitor the Bitcoin 2025 website b.tc/conference/2025 or the Bolt Card site for any new compatible wallets.