I will make android application that you want. i will use the concept of geofencing, it will easily trigger alarm. What you want we will make it in very efficient and in a very good way.
Relevant Skills and Experience
Android App, Geofencing(Google Maps API), AlarmManager
Proposed Milestones
₹1500 INR - In one week, your app will be delivered to you!
Whether you want to trigger alarm on a location or trigger alarm just before the day of train?