I'm sorry if this is a bit confusing, currently at this moment the donation version and public version are the same.
Because I release on all platforms making separate versions would double the workload thats already very difficult to manage. So when I do the rare public release (9 months ago for Windows, almost 2 years for other platforms) I just release the current build.
But thats for this, this "Preview" version, soon the game will just be "Our Apartment" and there will be a demo as a final public release.
So yes the APK currently is "Our Apartment Preview", thats because the build isn't in the proper format yet, come February I think, the structure of the game will change entirely to include story and the daily system.
I hope this clears things, the former issue in the OP was likely just not noticing the main menu scrolled.