PluginDownload Monitor
WPChill

PluginUpdated
Download Monitor Twitter Lock by WPChill is a WordPress plugin for sites that manage files with Download Monitor.
Visitors who want a file must share a tweet before they can access its download. This places a social sharing step in the file access flow, which can suit site owners who want to encourage visitors to share their content on Twitter.
Set a custom tweet message for an individual download, or use a global message for all downloads. The plugin is an extension for Download Monitor, and its templates can be overridden to fit the site's presentation.
The code of Download Monitor Twitter Lock is licensed under the GPL, so anyone may use, change and share it. GPL 247 is a paid service: a plan or a purchase of Download Monitor Twitter Lock gives you the download and its updates. The developer's own support, licence key and online services are not included.
Version 4.1.4, released 9 July 2023. New versions appear here when the developer publishes them.
Install GPL 247 Updater on your site and paste your key from My Account. It installs new versions of Download Monitor Twitter Lock for you.