The most important metric is revenue. Can we get anyone to pay for the app. We have 250+ people sign up so far, but didn't have to pay us anything... Can we con

The most important metric is revenue. Can we get anyone to pay for the app. We have 250+ people sign up so far, but didn't have to pay us anything... Can we convert 25 of them to pay us $6.99/mo? Or will it be 2 of them? Update... so far, no sales. But we have a queue of trial recommendations to fulfill, which we expect is a prerequisite to people paying us. If we can't get people to pay up front, we'll switch to allowing them to upgrade, but not billing them until X days after signing up. Whatever it takes to ethically maximize conversion-to-paid ratio.