Princess trainer wasn't really released as a "finished" game so to speak, but for way to many years tit bits and updates came along. I eventually got frustrated and stopped checking. When I rediscovered it about a decade later, the Gold Edition had been released, I started playing and recognized: "Hey isn't that the extremely broken and frustrating, unfinished game you played years ago, by that guy who never even finished Magic Shop? I didn't think that would ever be released.". That was my experience.
But I can't testify anything to the final - none gold version - might be floating about somewhere.
So I found out, the release version of Princess Trainer was 1.02 in 2014, and it was concluded in 2016 with the Gold Edition 2.03. It's still available on Akaburs Patreon and here:
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Let me know if somebody figures out how to fix the "Fails CRC" check

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So there's a password "patreon" (possibly both with and without brackets), and an alternative password support_akabur_do_not_share_this, and it only opens with winrar [but that also doesn't work], also the Part2 file from the archive is broken and the replacement file can't be reached - I'm remembering why I was so frustrated with the guy ...
Anyway what I could gather from comments, is the original version simply lacked Lola (or at least Lola moving in), Azaela (something like that, the clothier girl), some scenes from Jasmin and Iris, and was bug heavy. That's about it, but without a changelog I can't say for sure ...