Write Android and iOs Service for checking messages on server

When you Bid, write Notification keyword at the beginning of proposal, so I know you read the project and know what to do. No discussion is necessary. Write Android and iOs App Service for checking messages on server at specified times and On App open event. In short we have WebView embedded in App. When notification is shown based on new message arrival on server, and user clicks it, the App is opened with specified URL. I have Code for this for Android, which executes for every 1 hour, but that needs modification to do above mentioned task. Submit your final bid amount.