iOS application (also Android for the same app) - open to bidding

To design an App which will be enabled only by our bluetooth device when it is paired and connected with the mobile. This App will make a phone call when triggered by the phone's sensor (eg when a fall happens) whose sensitivity level can be adjusted (perhaps 3 or 5 levels) by the the user. It will allow user to enter 2 telephone numbers which it will dial automatically when triggered in order of priority, eg if the first number is engaged, it will dial the 2nd number and repeat this every minute (if the first call and second call continues to be engaged or busy) until a call is initiated and when completed, it will dial it another time after 30 secs (as confirmation call). The settings (Phone numbers, sensitivity and App ON/OFF) are configured as part of the application setup. When the call is completed, it will automatically sms the successful called number the GPS position code of the mobile with the App. A simple and clean UI with would be essentail.