P4S_Lamongan is a free Android app developed by vay winar that is designed to evaluate students in Kabupaten Lamongan. The app is aimed at sixth-grade students and provides a platform for teachers to assess their students' performance in the final semester exams.

The app is easy to use and has a simple user interface. It allows teachers to input scores for each student and provides a summary of the results. The app also includes a feature that allows teachers to generate a report of the students' scores, which can be used for further analysis. Overall, P4S_Lamongan is a useful tool for teachers in Kabupaten Lamongan to evaluate their students' performance in the final semester exams.