Ditto. I was actually thinking of trying Roam until I read there was no mobile app. I like the idea of a “second brain”, but for me that has to be something that never gets detached from my first brain. It has to be accessible at all times, for both reading and writing. I currently make do with Apple Notes, but I’m interested in finding something more organized…
A second brain should also be as private as my first brain – ideally end-to-end encrypted, which I guess Roam is not if it’s a webapp. Too bad. (Apple Notes isn’t end-to-end encrypted either, but that’s another reason I’m looking for an upgrade.)