With the demise of Omnivore people have been looking for alternatives and I’ve heard great things about Obsidian Web clipper which is now out of beta. While it does work on mobile I don’t see a way to send stuff from an iOS app (like YouTube) to the web clipper without first going to Safari.

I’ll need to play with it more along with some other options I’m looking at before I decide what the best tool is for saving stuff to read later.