The 1.6 version of SimpleClient 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 developed by Tien Thinh Vu. SimpleClient for Mac lies within Developer Tools, more precisely Webmaster Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
SimpleClient for FTP SFTP is a native, fast FTP, FTPS, SFTP, WebDAV, Dropbox and Google Drive client with many features and an intuitive graphical user interface. The tool offers multi-connection-views in the same window. In addition, it includes Connection History to store multi server connection accounts. The app allows you to upload, download, duplicate, and rename selected files and folders.
You may want to check out more Mac applications, such as RAGE Sitemap Automator, Navicat Lite or WebCrusher, which might be similar to SimpleClient.