We are delighted to announce that over 100 TSC family members from 16 different countries have been registered on the TAND Toolkit App as part of the TANDem-2 project! This study is using the TAND Toolkit App to learn about how TAND severity changes over time. A big thank you to all the individuals with TSC and their caregivers for helping us collect this information on the app. Check the World Tracker and see if you can put your country on the TANDem-2 project map!