The 3.18.4 version of DocsInk for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application was originally designed by DocsInk LLC. The program lies within Communication Tools, more precisely Texting & Video calls. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
DocsInk is a native Mac desktop app for chat, discharges, consults, and secure live video from provider to provider. You have the ability to organize your chat groups and your call groups according to your preferences. A handy search engine allows you to search contacts with ease.
You may want to check out more software for Mac, such as iChatMonitor, MySpaceIM or ISL Pronto, which might be similar to DocsInk.