If used to allow temporary use of your device Android by other people, the most probabil you don't want them to be able to have accession certain applications installed in the system. To solve this proproblem, the simplest solution is to block these applicationsSo they can not be opened without your permission
application Avast Mobile Security & Antivirus for Android gives users the ability to block individually applications installed mobile deviceSo they can not be accessed only with a passwords set of utililizator.
To block an application installed on the device Android, Launch Avast Mobile Security and select Application Locking menu settings thereof. Will be displayed list which contains all applications installed in the system, and some System modules (Such as Settings). Check the application you want to block, then set password si pin recovery thereof (version free Avast allows the application blocking the only two applications; if you want to lock several applications, buy version premium, Available at a price of 14.99$).
After the block desired applications to be access these applications will have to first enter password (Consisting of 4, 5 or 6 characters). If you forget the password, it can be recovered using Recovery pin.
An alternative to Avast Mobile Security & Antivirus for blocking access to applications installed on the device Android is free app App LockIt allows lock an unlimited number of applications and some Feature Links such as sending text messages (SMS) or phone calls. Application Avast but gives users and proantivirus protection si Mobile Device Security (e.g blocking infected with malware links).