Go PRO to get these benefits:
License for 1 personal site
- Lifetime updates
Lifetime premium email support
- Access to all current & future PRO features
- More than 50 extra features & options
After buying, just copy & paste the license key displayed on the screen (a copy will be emailed to you, don't worry) in the plugin. You don't have to download any new files if you already have GMW installed.
Agency license for unlimited client sites is available as well - https://gumroad.com/l/gmw-pro-agency/