This is a really fun and creative idea! I just tried a few rounds on Crowdle and was surprised by how tricky — yet addictive — it is to estimate the number of people in a crowd. The daily limit of 5 images is a nice touch; it keeps the experience quick and fresh. I could see this being used not just as a game, but also as a training tool for improving visual estimation skills, maybe even with competitive leaderboards or historical stats to track accuracy over time. It might also be interesting to add themed rounds (e.g., concerts, protests, sports events) or difficulty levels. Overall, great execution — simple, clever, and engaging