Images2Gif 1.0 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 com.nara.luna. We recommend checking the downloaded files with any free antivirus. The application lies within Design & Photo Tools, more precisely Viewers & Editors.
From the developer:
Images2Gif allows you to create animated GIFs out of your images. First, you need to drag and drop pictures onto the program. Then, you can reorder images and preview your project. You can set the number of times to repeat an animated sequence, as well as the amount of time to wait before displaying the next image of the sequence.
You may want to check out more software for Mac, such as Smith Chart for Mac or Keynote Action Pack, which might be similar to Images2Gif.