i was thinking if there is anyway to sync android app with a web/website account. Basically, if the user logs in through the web, i want the android app to log in/start up/show notification. Should i use a background service in android to monitor the account or something else Please help Thanks
As far as I can see, you have a couple of options:
AlarmManager
to schedule a repeating alarm to check on a scheduled interval. This will be less battery consuming but also less immediate (unless you set a low interval which will consume a lot of battery).