The app is free to you, but if we can detect (say) diabetes early and route you to the right medical care, we save the healthcare system money. We've built a platform called Cardiogram Connect which optionally lets you share aggregated data in exchange (usually) for financial rewards. You'd choose to connect with whoever pays for your healthcare--depending on your situation, that could be a health system, accountable care organization, insurer, or employer--and that entity is the customer that pays Cardiogram.