Great, just another question, will you expand to other social media platforms any soon?

Just a thought, your user base will likely consist marketers, promoters, social media businesses and people who actively use more than 2 social networks. Your pricing model is good, but if the service is as good as you say its then you may want to price "business" model a little higher.

I guess whats important is to gain an active user base first and then decide to slightly change the pricing model later on.