Way back when the only real LR competitor was Aperture. I moved to LR when Apple discontinued Aperture, though I really wish they hadn't. I've tried all the competitors multiple times but keep coming back to LR for my DSLR usage.
Apple being an off and on competitor in the space was always strange.
They failed to commit, and often let their tools languish, despite the following. Odd.
I switched to Capture One, which at least offers perpetual licensing, but their pricing has become sufficiently annoying that I plan to look very closely at DaVinci Resolve's new photography features as soon as I have time (I already use Resolve for video and have a paid license for it, and in fact have have considered using it for photography in the past because it has a much better UI for nondestructive editing than any image editor I've seen).