Mainwp Buddy Extension is developed by MainWP. You can download the version 4.0 for $5 or have it for free if you subscribe to a monthly plan.
Mainwp Buddy Extension is the SAME file as the original one (nulled version) developed by MainWP. The last update of September 1, 2019 comes with new features and known bugs have been fixed.
For more information, click here to visit the developer page of this Mainwp Buddy Extension.