Hi Sundeep, I think the first step is to see if there are any apps out there that filter e-learning by theme. Upon an initial search, I haven't seen many out there. It surprises me because there are so many teachers in staff rooms trying to figure out which is the best math app/resource , or what is the best english app/resource , best learning platform etc. during the online learning of COVID. Most apps are ranked, however, and there's a lot of reviews online, so I wonder how much of a problem the app would solve. That said, if it offered teachers a way to filter what they are looking for by age, subject, etc. perhaps that would be a real service to educators. On a side note, I think there would be a huge demand for free online learning resources that are not subscription-based. "Free" could be one of the criteria. It is remarkable how many free resources and free trials due to covid. Secondary students may be interested in checking out the free lessons provided by Edx: The edX app pulls together lessons from some of the best universities in the world. It was founded by Harvard University and MIT in 2012 as an online learning service and Massive Open Online Courses, or MOOC, provider. The service provides high-quality lessons to students from across the globe. edX offers lessons in science, English, electronics, engineering, marketing, psychology and more.