Depends on the definition of "signed up". 99% of them may have signed up for the free 10 text message trial. Without knowing the conversion from signup to paid, retention rates, and so on it could be either wildly profitable or losing money.

Understatement of the century here. That's 1.5MM USD in annual reoccurring revenue made in a day. Currently companies are being valuated at as much as 10x ARR. That's a 15MM USD company risen from the ground in 24 hours.