iPic 1.7.3 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. This free Mac app is a product of Toolinbox. We recommend checking the downloaded files with any free antivirus. The program lies within Design & Photo Tools, more precisely General.
From the developer:
iPic can automatically upload images and save Markdown links. The application allows you to upload images by drag and drop or by using hotkeys. The program supports Imgur, Flickr, Amazon S3, and other image hosts. In addition, it supports image links of the Markdown format.
You may want to check out more Mac applications, such as iPic Mover, which might be related to iPic.