Freenav (or is it navfree) is a decent freebie satnav app, once you've got your head out of 'tomtom mode', and learn its simple (but different) interface. Mrs TB uses copilot (as it was cheapest at time), again quite good.
No idea if these stop rotation, as we use mounts...
How good are the audio instructions? The nDrive App I have has great visuals, but useless on the bike when I need audio. It quite often gets the exit on round-abouts wrong.
I never look at the screens. Ever. I think the visual parts should be disabled, or made pictorial (or safe screen on old fashioned tomtom speak). Distracting, therefore bloody dangerous.
But then the world is a made place - I can fail an MOT over a bloody dingly dangly, but the police turn a blind eye to a windscreen full of gay gonks stuck all over it.
Every satnav system I've had, the audio alone has been good enough. I think one of the keys is to use it even when you know where you are going, so you get to know what its telling you to do. Then when you are in an unknown area, you understand the instruction more clearly.
I would say copilot does chatter a lot... ...like a running commentry
