Darn, title had me thinking they released a mobile app to compliment the TUI daemon.
termux+mosh is fine, but especially on a phone I'd love a slightly more intuitive (or really, efficient) UI. Especially as mosh breaks touch/mouse input on the remote host.
I've never understood the point of the desktop GUI harnesses to run TUI (or at the very least, primarily text-based) programs anyway, but perhaps they're better for onboarding less tech-savvy users.
I've been using a Collie on Android to connect to my herdr server, it's very good
Have you tried moshi? It’s Herdr aware.
Tui-in-guis like orca are nice mostly because of sensible keybinds without prefix or leader
try cosyra mobile. Its the best mobile client for herdr. It uses websocket and is has a really smooth ux.
I use https://github.com/0cv/herdr-mobile-relay
I use it only with tailscale.