Hidden App

I want someone to create an app in which user could change the settings of one mobile phone from another mobile phone. I need 2 features that are compulsory rest if you can do that's preferred. 1. Like I want to take the picture from my child mobile that where is he. Then I will message from my mobile to my son's mobile 'Take picture' then his mobile automatically will take the picture and when my son will be in the Range of Internet (whether WiFi or Mobile Data) that will be uploaded to my mobile. He will not be aware of that just he will get a message only. 2. When I have 2 mobiles and i forgot where my second mobile is. And my mobile is on Silent mode then I want to change its mode from Silent mode to General mode by sending message 'General Mode' or 'Vibration Mode' or 'Silent Mode' if i want it to be in silent mode remotely by just sending a message. 3. Location of the Mobile if possible 4. Switch on The Flash Light of the mobile, in case we don't want to ring the mobile. I want these 4 features, and remember the 2 or more accounts must be interlinked before like both should be paired either by mobile number or email address. I mean no third person should have access to someone's mobile. Totally secured. When the User will download the app 50 coins on downloading and after every month 50 coins will be credited to their accounts and after using it all or non availability of coins in their accounts, user can buy the coins 2 coins are charged per message. User can buy the coins in multiple of 50 coins at the rate of 50coins/1$. Please read full description then only bid. Include 'Take Picture' in the 1st line of your job proposal otherwise no need to bid and only bid if you think you had done similar in past or if you are 100% sure you can do. In past we already did the same thing with a freelancer and I know it's genuine rate. This project is really easy for a good developer. I want to put it on Android and IPhone Store.