Might be the client you are using.
Discussion
Do you have a different rec for iOS?
Sad to say I do not. I'm an Android user. But as someone else pointed out, you can use zap.army and there may be other options as well.
Additionally you can try a PWA, like Iris or Snort. I haven't used either in awhile so I don't know how the user experience is these days. If you use any other clients, I highly recommend using a signer to log in.