Does CaptionCall work on a cell phone? Is there really no cost?

As a CaptionCall user, you’re familiar with using real-time captioning for your calls at home. But did you know you can get quick, accurate captioning while you’re out and about?
The CaptionCall Mobile app brings real-time call captioning to your cell phone. You can have natural conversations on-the-go without any delays or lag. And you don’t have to depend on Wi-Fi. CaptionCall Mobile provides call captioning anywhere you have mobile data service.