From https://onesignal.com/about https://onesignal.com/about: It's free; how does OneSignal make money? We make money by using the data we aggregate to improv

From https://onesignal.com/about https://onesignal.com/about: It's free; how does OneSignal make money? We make money by using the data we aggregate to improve web and mobile experiences. We also offer custom solutions to enterprise clients.