Persecond 1.7.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The application lies within Design & Photo Tools, more precisely Viewers & Editors. This free Mac application was originally designed by Flixel Photos Inc.
From the developer:
Persecond offers an easy way to create beautiful timelapse videos. All you need to do is import an image sequence, trim the sequence to your desired length, adjust the speed for a dramatic effect or a specific duration, set the playback direction, and you are ready to export your project in broadcast quality.
You may want to check out more Mac applications, such as Ashampoo Cover Studio 2 for Mac, ImageBuddy or Panoweaver, which might be similar to Persecond.