I have left on the 2019-10-27 a 1 star rating (out of 5) saying that it was impossible to login into expo app.
(Of course I have checked my credentials using expo login, and the website, both work).
I didn’t get your attention, so I emailed at support_at_expo.io and finally landed here.
How can I login into expo using the android application? My smartphone is a Samsung Galaxy S9.