As far as I am concerned there is no review of this piece of software.
It is a pet project that I’ve spent the last year and a half working on. So far I have only advertised it here.
The point being that for now it is highly unstable and thus only suitable for testing purpose. Still I use it for my photography.
Otherwise how it differs from digikam, I do not know. I have very little experience with digikam and I’ve always found it confusing. The aim of this project is to provide a clean UI for you to organize your photos. It relies on non-destructive editing.
The technologies is also very different, being a web developer by trade, I rely on electron.js, C++, javascript, HTML and CSS for writing this project.