I'm completing version 1.0 of my ScoreBook application using many of the powerful features of Azure Mobile Services like toast and live tile notifications. Also, as a feature of my application, I want to provide sports fans the ability to 'text to subscribe' to the games being 'booked' by my applicaiton and receive 'live updates' notifications via text messages as the game is going.

I'm using the sendGrid functionality to send the live text messages out and that seems to be working well, I'm looking for a similar texting service to receive fan game subscriptions and automatically 'subscribe' the user to the game - 'text to subscribe' functionality.

Further discussion and dialogue is appreciated!