FriendFilter can also be thought of as a fb friends tracker app to help users identify their friends' interactions with their posts. For businesses, influencers, and users whose business somehow depends on active Facebook followers, FriendFilter can provide detailed analytics; identifying inactive friends who never engaged with your posts, which gives you choice to remove them. If you properly define your friend's list, to remove inactive Facebook friends users will see your posts, and increase the chances of overall engagement and interaction.