Blue Wallet keeps your keys, ships Lightning, and quietly sunset the part it couldn't keep honest.

How it works

Blue Wallet is a Bitcoin-only wallet for iOS, Android, and macOS, written in React Native and published as open source under the MIT licence on GitHub. Keys are generated and stored locally; the seed phrase never leaves the device. By default the app connects to Blue Wallet's own Electrum server pool, but users can point it at a self-hosted Electrum Personal Server or their own Bitcoin node — the configuration the project recommends for any non-trivial balance.

The app ships with multisig vaults, watch-only wallets for cold storage, coin control over individual UTXOs, custom fee selection, and integrations with Coldcard, Cobo Vault, and other hardware signers. A "plausible deniability" mode lets a second password unlock a separate decoy wallet — a feature aimed at coercion, not at theft.

Lightning support is now self-custody only: users connect to a personal LNDhub instance or a third-party node they trust. The hosted LNDhub.io service was sunset in April 2023, after the team decided the custodial fallback no longer fit the project.

KYC & privacy

There is no signup, no email, no phone number, and no KYC at any tier. The wallet has no account system because it has no servers that hold user state — only optional Electrum and Lightning backends, all of which a user can replace with their own.

Privacy gotchas are the honest kind. By default the app talks to public Electrum servers operated by the project, which can see the wallet's addresses and the connecting IP. Routing the app through Tor (built in on Android, system-level on iOS) and pointing it at a self-hosted backend closes that gap. The project does not publish a transparency report or a warrant canary, but it also operates no custodial product left to subpoena.

Strengths and limits

The strongest case for Blue Wallet is what it walked away from. Killing LNDhub.io rather than monetising it cost the team a base of casual Lightning users and ended a real revenue surface; the replacement is harder to set up and visibly less convenient. Few wallet teams make that trade voluntarily. The codebase is open, the multisig flow is mature, and the hardware-wallet integrations are first-class for a mobile-first project.

The limits are the inverse of the strengths. Self-hosted Lightning is real friction — most users will either skip Lightning or trust a third-party LNDhub, which moves the custody question off Blue Wallet's books without solving it. There is no formal third-party security audit on record, only the public GitHub history and a long list of resolved issues. The default Electrum servers remain a privacy trade-off that most users will not change.

Verdict

Blue Wallet is a competent, opinionated, Bitcoin-only wallet that has earned the right to be boring. It is a sensible default for users who want self-custody on a phone without learning a hardware-wallet UI on day one, and a poor fit for anyone who wants altcoins, DeFi, or a one-tap custodial Lightning experience. Grade: A- (8.9/10). Trust: TRUSTED.