IOS：限制删除应用程序或向父母发送通知（离线）

I am developing one parental control app in IOS. This app will restrict kids to use iphone within set time periods. and also I want to restrict kids with prompting "Enter password Dialog" while uninstalling this app. (I know this isn't possbile). So, I thought of sending SMS when user is about to uninstall the app. (not possible IOS will launch composer screen with message Text and kids need to approve that...also in airplane mode this won't work at all.)I am developing one parental control app in IOS