fschaefer / Proximity-Alert

What are Proximity Alerts? —- Till date we always use alert system to give alert on specific time i.e. on Birthday’s, Anniversary etc.. But what if we don’t know exact time but we know place consider example that you want to fix your glasses when you go nearby your glass repair store. So you exactly don’t know when you are going there but whenever you go you want a reminder that you are nearby your glass store & repair your glass. For these purpose proximity alerts are used.