Speed up the installation time, add more countries, make service fee cheaper and your service will be a BOMB! Profitable for you and service of value to its customers. Its like almost every service, website these days require receiving sms to confirm/activate accounts, actions, so your anonymous service accepting BTC, could be the thing
Price in op picture is different than those on the site (as per picture in op, 0,09 per sms for every region, and on the site it's 0,29 usd per sms)
And paying monthly fee of 12$ for a service like this is not something most people will do, making that 2$ promotion futile.
cheers