[DigitalJack]

Blink is open source if you want to compile it yourself. I find it useful enough that I bought it. Plus I was too frustrated playing with certificates.

Prompt is ok but they seem to have stopped updating it. The main thing with Blink is that it uses mosh to maintain sessions over ssh. It can re-establish a connection after intermittent disconnects. If the app actually closes, I don't think it will handle that, but otherwise if the connection drops (due to the app being suspended), it will recover.

key management is nice, ssh config is nice (I use non standard ports frequently). Oh, remapping the Capslock to control is a big one for me. I can't find a way to do this globally on iOS, but blink will do it, and that is where I need it most.

that's mainly it for me. I can't remember if I tried termius or not.