We provide free version changes.
You will be automatically prompted to update once a new release is available, and you can also check out the change log for the latest version changes.
Change Log
http://followadder.com/changelog.php
You can download the most recent version of the program here:
https://followadder.com/download/
Windows http://followadder.com/FollowAdder-IG.exe
Mac http://followadder.com/FollowAdder-IG.dmg