Download of TouchAppViewer 1.9 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac app was originally developed by Tiger Ng. The application lies within Developer Tools, more precisely Webmaster Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
TouchAppViewer is specifically designed for viewing and downloading web apps created by TouchAppCreator for offline browsing and sharing. With this tool, you can download ZIP file of web apps from Files, download web apps by folder or shared folder from Google Drive and Dropbox, and share web apps privately. also, the tool supports fast browsing content offline.
You may want to check out more software for Mac, such as Browsealoud, RAGE WebDesign or solr, which might be related to TouchAppViewer.