Do you lock access to apps on your device? Which app do you use for that?

[Fidelia]

For some of us, we have app lockers that restricts access to particular apps on our devices. Accessing a locked app would require some sort of authentication. Which app locker do you use to lock apps on your mobile device?

 

[Kross]

I use Vault by Netqin company to lock access to my apps. It would require a vault password to be able to use the app.