My phone is with android Oreo but I can not find this dual app option according to videos on you tube for android Oreo so anyobe can help I don't wish. To download any app
Welcome to Android Central! What do you mean by dual app -- do you mean the ability to log into two different accounts for the same app, like Facebook? This isn't a native Oreo feature -- it depends on the phone manufacturer. If Umdigi didn't mention this in the manual, then it probably doesn't have the feature.