The reason why Open Products Facts might look different than Open Food Facts is primarily due to the difference in the state of their respective codebases. Open Products Facts' codebase is currently considered stale or outdated. However, there are plans to update it soon to bring it more in line with the advancements and improvements seen in Open Food Facts. This update will likely include enhancements in the user interface, features, and overall functionality, making it more user-friendly and efficient.