Use APKPure App
Get Entrance Helper old version APK for Android
Oznacza uczniów, którzy weszli do szkoły bez użycia kołowrotów
An application for students and teachers that allows students to generate a QR code, and teachers to record students who entered the school using the received code.
By the way, so that the names of students are displayed when in the water, you can import a database with QR codes in excel format into the application.
(card id, full name, class).