Android devices make it easy to prevent others accessing them, but it's generally an "all or nothing" system: once someone is past the lock screen they can do what they like.
ES App Locker - from the developers of ES File Explorer - adds another layer, allowing you to block access to individual apps with a pattern (much the same as the regular pattern lock system). And so you can hand your phone to someone if they want to browse the web, say, and know they're not also going through your emails.
Once the system is set up, you can easily lock or unlock anything, including system apps, by drawing your custom pattern. And if you forget, no problem, ES App Locker automatically locks apps when your screen turns off, too.
The app now also includes a password protection feature, ensuring that others with access to your phone won't easily be able to bypass ES App Locker and browse your data.
*Fixed crash after unlocking screen
A simple security tool which gives you a little more control over what others can do on your system. It's not exactly feature-packed, but there's already enough to defeat casual snoopers and we expect it'll be significantly improved over time.