Super simple and tiny app which checks "Anmeldung einer Wohnung" timetable in Berlin for available slots.

It makes a check once per minute for you and sends a push notification when a free slot is found. It can work in background. Can be stopped anytime with "Stop and close" button.

When you receive a notification, just click on it to open a browser with the timetable and book the "Termin" (appointment) yourself.