Android Mobile Retailer Control App

I'm in need of an Android app that will allow me to have complete control over my retail mobiles. The app should enable me to block selected features on the mobiles and lock them when necessary.

Key Features:
- Ability to push instructions both via SMS and the internet to control the mobiles
- Option to block specific mobile features such as calling, internet access, and applications
- A secure locking mechanism using a PIN code

Ideal Freelancer:
- Proficient in Android app development
- Experience with integrating SMS and internet-based communication within apps
- Familiar with implementing feature blocking functions
- Skilled in creating secure locking mechanisms for mobile devices.