Hi Richard; using your App on iPhone SE (1st gen 2016 - small screen):
The red 'Reroute' Button is unresponsive: (There might be an alignment issue between button shape and tappable Area?) Because when I try to hit that button, a pop up callout BEHIND that button shows up stating 'extend route to here?' So the screen responds to the Tap, but it does not assign it to the Reroute Button.

Also different topic: Wrt screen brightness: Everything works as expected (I am using 'Dim between turns'), i.e. screen goes dark and comes back w/ full brightness, when I am approaching a turn. However, when the screen is dark and I tab the screen to light the screen - from that point on the App seems 'confused': Brightness only goes to 'semi-bright' - even after next dimming and re-lighting.

Hope I could explain the 2 issues understandably... Otherwise great App!