xProDDNS 17.1.0.3 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.
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 relates to Internet & Network Tools. This free Mac application was originally developed by F.W.Roller & Associates LLC.
From the developer:
xProDDNS is a Dynamic DNS Client for Dyn, No-IP, OpenDNS and DNS-O-Matic that runs natively on Windows, OS X and Linux. It is secure, fast and efficient. Workstations and headless servers are easy to manage thanks to local and remote access via mobile and full web user interfaces powered by a built-in web server. Features Security is crucial so all data is encrypted and the login passphrase is stored as a hash derived from an obfuscated salt.
You may want to check out more Mac applications, such as AirportTraffic, QuickWho or NetSpot Device Installer, which might be similar to xProDDNS.