This mobile app is not associated with the current open source project. Like i think it’s a vestige from before they went open source. They recommend using actual in your mobile browser for now, which works decently well

Sweet! Does it sync to mobile? I’m on ios, and haven’t looked into syncthing

I have been using obsidian for the past few months and i really enjoy it. It’s not open source, but you can self-host a not syncing service called Obsidian LiveSync that I use to sync between my computers and phone