Dr. Matt Maciejewski, an Associate Director at Pfizer, Alliance Alumni Director, and the first alumnus of the Wellcome Trust – NIH PhD program recently took it upon himself to implement a few of the available methods for correcting the Covid-19 underreporting, and created a simple web-app that can be freely used to visualize the true case number estimates. An accompanying writeup is available on Medium. For those interested in the code behind the app, Matt made it available on GitHub