I thought you have developed an app to monitor twitter and facebook.
If you ask such tool, could you be specific regarding the features you want about social media monitoring?
I'm not sure about facebook (not a fan) here some articles about it:
http://www.socialmediatoday.com/content/20-top-twitter-monitoring-and-analytics-tools
Tweeps: What do they tweet about? How much do they tweet? How social are they? Do they use hashtags? Share URLs? Tweeps answers these questions and more. It analyzes the content of Twitter users' tweets to find interesting statistics about them, and updates them several times a day. You can use Tweeps to help you decide who to follow, who you would like to be following you, or just to discover interesting information about Twitter users.
https://blog.kissmetrics.com/twitter-spying/
https://www.dreamgrow.com/69-free-social-media-monitoring-tools/