Disclaimer: I have nothing to do with this app, I am a genuine user who has found it super useful and wanted to share.
So I live in London and have downloaded the app, either free with ads or £2.99 without. Search for an address or even a shop name and the app will show you a map with the closest solo bike bays on it. Then click on one of the bays and the address pops up. Choose to click through to google maps and it will take you directly to the bay.
I use a pair of in ear earbuds connected to my phone. They service both voice commands for the sat nav and have fairly good noise isolation too.
I hope someone finds this app as useful as I have so far.