I was wondering if anyone knew of any apps that allow you to limit access to applications and data on an Android 4.4 phone, so it can be unlocked to give permissions to the first level of applications and data, but there is an additional wall in PLACE which requires password/code for 2nd level in access which gives access to all data and apps vs just those in the first level limitations?

For example if I loan my cell phone to my child, can they have access to making calls with it and surfing web with it if needed, but anything in a secure ZONE ( 2nd security level in ) is off limits without a password/code such as my business stuff and anything else I want to keep there out of the reach of OTHERS other than myself?

Its too bad the phones cant have same phone number and 2 profiles, or can they? One profile Business and other profile general access.Have a Looksee...wow

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But wait, there's a catch.
Restricted user profiles could potentially put parents at ease, but it's up to the developers to integrate the API that gives users access to granular controls. That's right: developers have complete control over whether or not their app features can be restricted from users. For example, one game might allow the tablet owner to disable mature content, while another does not, simply because they didn't integrate the feature.