It collects listings from multiple searches on ImmoScout24 and applies for you. I decided to build it because alternatives were either too techy or too expensive (like 100 euros per months).
I originally built it for myself, then released it as a free and open-source desktop app. The first release got much more attention than I expected, and the project is now at 92 GitHub stars.
It currently supports Mac, Windows and Ubuntu Linux.
GitHub: https://github.com/B1Z0N/homelander
I'd be interested in feedback, especially on the UX side and on what would make it more useful for apartment hunters.
Disclosure: as you can see I used AI to make it faster, and for UI, since I am bad at it. But I spent a shitton of time on UX.
PS: I heard some people found apartments using this app, but I must warn - this is a portfolio project and goes against the usage guidelines of IS24.