AirGap Vault
Wallets
AirGap Vault is an open-source Bitcoin and cryptocurrency wallet system that uses an air-gapped smartphone as an offline signing device. The companion AirGap Wallet app handles the online portion while the Vault app — installed on a dedicated offline phone — signs transactions via QR codes. It supports Bitcoin, Ethereum, and Tezos with strong security architecture.
Details
- Type
- Mobile wallet (Bitcoin + multi-coin, air-gapped signing)
- Multisig
- Yes
- Custodial
- No
- Developer
- Papers AG
- Lightning
- No
- Platforms
- iOS, Android (offline signing device)
- Open Source
- Yes
- Tor Support
- No
- Bitcoin Only
- No
- Coin Control
- No
- Multisig Support
- Yes
- Lightning Support
- No
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Alby
Alby is a Bitcoin Lightning browser extension that brings deep Lightning Network and Nostr integration to web applications, enabling payments and passwordless logins directly from the browser. It operates as a flexible wallet interface supporting both hosted custodial setups for easy onboarding and fully self-custodial configurations via Alby Hub, a standalone personal Lightning node. The extension supports on-chain Bitcoin, Lightning, Liquid Network assets, and Nostr key management across Chrome, Firefox, Edge, Safari, and other major browsers.
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