low cost home security app

We need to develop a low cost home security app: control your home/appartment with an app. The app is installed on a smartphone. The camera is detecting any movement and starts recording the images. An alert message (the alert message is accompanied by an audio alert signal) is send to the main smartphone which is with the home owner. He can view the images live and check if their is an intrusion. This alert is also send to a centralized server. When the home based app is actived (by clicking a button). There is a laps of 3 min. before the system is starting to Survey the home/appartment. The home based smartphone app can be de-activated through the main app on the other smartphone. To resume: the app is running on a smartphone and communicating with a second smartphone if their is an intrusion. The first smartphone is "the Survey camera" detecting movements. We need this app for iPhone and Android.