The world needs better testing, but we don’t have the tests to go around. Broader testing would allow us to determine many things, including how many people have been infected but are only mildly symptomatic. If we knew this number, policies could be more carefully crafted to prevent further spread by individuals who will never be tested because they never go to a hospital because they only have mild symptoms (which appears to be the vast majority of those who are infected). Let’s create a test of sorts that would be available worldwide through the use of smartphones. Epidemiologists and physicians have already identified a list of symptoms that more often than not appear in those who are infected but are only mildly symptomatic. The app would allow users only one use. In that use, though, the user would check off the symptoms they believe they have. The person would also provide other relevant information, such as their location, whether they’ve ever been tested before, how long they had their symptoms, etc. Again, the app would be designed for a one-time use. The data would then be fed into an AI filter of sorts that would analyze the data, sort it, and look for trends and overall numbers. The results would provide for the first time a worldwide picture of this virus, including a vastly better estimate of the denominator for determining the virus’s overall mortality rate. The app could also be re-established for reuse in, say, one month’s time to get another snapshot of the virus’s progress across the globe. While the data would still be imperfect, since it would be only from those individuals who have smartphones and decided to use the app, we nevertheless would have created a vastly better way of getting a picture of this virus’s spread across the globe and the characteristics of its spread. And the cost would be only the time it takes to develop it. Word of its use could be spread across a wide variety of platforms for free.