Syscoin 1.5.1.1 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This free Mac application was originally created by Syscoin Developers. The application is included in Business Tools.
From the developer:
Syscoin is a crypto currency that is universally merge-mineable and offers a unique variety of services including aliases, data storage, marketplaces and certificate management directly on the blockchain. This app supports a wide variety of marketplaces, ranging from the fully decentralized marketplaces to centralized business markets.
You may want to check out more software for Mac, such as Putler, Airfoil Speakers or Goldenseal Demo, which might be related to Syscoin.