BuddyPress.org

@peterverkooijen –The supporter plugin is more than that. Basically what it does is simple. It allows you to select which plugins are available to supporters only. Meaning you can have plugins activated that everyone can use, and also have ‘premium’ plugins for your paying members. It even puts a nice little ‘info’ box in the plugins directory page that says ‘for supporters only’ so the people can see the value to ‘joining’.