Hi.
Are there any plans to introduce app-side Touch ID / passcode login? Or is the plan to just leave the app open? What if a user doesn’t have a passcode set in their device?
I asked the same question - it’s on the road map and will happen! 
Yeah, we’re working on it
We will probably keep the switch off by default and ask you a few days after you open your account if you’d like to opt-in (and explain it better for people that don’t fully understand the consequences of having a non-locked iPhone).
I was just thinking the same thing +1