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second.tech launched Bark today.

Today, Second’s Ark server is available for anyone to connect to and start making payments. If you’re a developer, you can start building on the Bark SDK or Barkd now. If you’re a user, we already have a number of apps for you to get hands-on right away (see below).

Here are some apps you can try out if you'd like to give it a spin:

  • Noah: A full-stack mobile Ark wallet, pairing a React Native app with its own Rust backend for account flows and Lightning integration.
  • Arké: A design-led native iOS wallet that brings bitcoin.design's open-source UX to life, and forges new ground for Ark-native patterns.
  • Satsigner: A Sparrow-style mobile signer with visual UTXO control, full multisig PSBT workflows, and Nostr-based label sync across devices.
  • Bark Wallet: An Umbrel app offering all the essential Bark wallet features, supporting Ark, Lightning, and on-chain. Built by Second. 
  • BTCPay Server plugin: Process self-custodial Lightning payments without needing to open channels or manage liquidity. Built by Second.

Also, the second.tech guys are doing an AMA at 10 am CDT / UTC 1500 so bring your questions.