I’ making an app for our growers, sometimes they have to check something on there phone and go back to my (web)app and have to login again.
Is there an option to keep them logged in on their phone when switching between apps?
Yes, make sure they bookmark the page (i.e. Home) you want them to go to if it is multiple pages. Or if its a single page app you can have something where, if the user is logged in then go to this or that.