Macphun announced they are working "digital asset managemer".

Macphun sometimes offer synergies to Apple's Photos app, but on OS High Sierra, they look give-up the expansion to Photos app or Apple may shut out with some technical reasons.
I often adjusted the brightness with Photos app because it was near effect to printed photos by general  developing services. New Photos app take various functions but AI got worse than before. So I don't use Photos any more.
Adobe Lightroom is always competitor for Macphun's Luminor or Aurora, meh I'm not interested in Adobe app because I was annoyed so much with them in my student days. However, When I think about useful photo managements, Synergy between Photos and Apple Cloud services or new Lightroom CC, I can't ignore them. So I expect Machun's new challenge!

DAM from Macphun in 2018