I installed the app on a Samsung S6, install the widget and can use Evernote with no restrictions. But after a few minutes/hours it disables, widget disappears and I have to go to the play store to ENABLE the app again. This happens all the time, I have re installed the app several times, reboot the phone, etc.
Model: SM-G920I
G920lDVU3EPI5
Kernel 3.10.61-8013872
COMP: MMB29K.G920IDVSA3EPJ3